agenttesla | ea17d1ff94d88763098609b49e10167d233c78094cffdc95a96ec99f5ed07cf5

Analysis

max time kernel
144s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-en-20220112
submitted
11/02/2022, 08:24

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General

Target
INQUIRY_SK91403BWK.exe
Size 977KB
Sample220211-kapp3seagk
SHA256 ea17d1ff94d88763098609b49e10167d233c78094cffdc95a96ec99f5ed07cf5
MD5 60525979521f952ba05efd31588cbf9e
SHA1 e0e27365dfc4c5017207f0fefb88e6e6b697ccde
SHA512 3d21551669aede31668bf10c7427f40483b08b1e3d714f4c8cd43c0aa6f355cae45fea375e0b7203c6aff04c0e729a8277f94bf9dbe9a8980fb2dc0331fa825e
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.tuquyfood.com
Port
587
Username
[email protected]
Password
Tienlen123
Email to
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

AgentTesla Payload 1 IoCs

resource	yara_rule
behavioral2/memory/2152-145-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	INQUIRY_SK91403BWK.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INQUIRY_SK91403BWK.exe
Key opened	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INQUIRY_SK91403BWK.exe
Key opened	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INQUIRY_SK91403BWK.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3984 set thread context of 2152	3984	INQUIRY_SK91403BWK.exe	78

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\DeliveryOptimization\State\keyValueLKG.dat	svchost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MusNotifyIcon.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	MusNotifyIcon.exe

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
2516	schtasks.exe

Modifies data under HKEY_USERS 47 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadRatePct = "100"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PeerInfoCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadPendingCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LinkLocalConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "5.555409"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4140"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyLanBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyInternetBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthID = "2"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\GeoVersion_EndpointFullUri = "https://geover.prod.do.dsp.mp.microsoft.com/geoversion"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyInternetBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyGroupBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DownloadMode_BackCompat = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLanBytes = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\Geo_EndpointFullUri = "https://geo.prod.do.dsp.mp.microsoft.com/geo"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CacheSizeBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CDNConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LANConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\BkDownloadRatePct = "45"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCdnBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrCnt = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\GroupConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkUsageBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkUsageBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLinkLocalBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCacheHostBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\InternetConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\FrDownloadRatePct = "90"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthlyUploadRestriction = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadPendingCount = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892178669201899"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.000000"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "3984"	svchost.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3796	powershell.exe
3944	powershell.exe
2152	INQUIRY_SK91403BWK.exe
2152	INQUIRY_SK91403BWK.exe
3944	powershell.exe
3796	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3944	powershell.exe
Token: SeDebugPrivilege	3796	powershell.exe
Token: SeDebugPrivilege	2152	INQUIRY_SK91403BWK.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2152	INQUIRY_SK91403BWK.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3984 wrote to memory of 3944	3984	INQUIRY_SK91403BWK.exe	72
PID 3984 wrote to memory of 3944	3984	INQUIRY_SK91403BWK.exe	72
PID 3984 wrote to memory of 3944	3984	INQUIRY_SK91403BWK.exe	72
PID 3984 wrote to memory of 3796	3984	INQUIRY_SK91403BWK.exe	74
PID 3984 wrote to memory of 3796	3984	INQUIRY_SK91403BWK.exe	74
PID 3984 wrote to memory of 3796	3984	INQUIRY_SK91403BWK.exe	74
PID 3984 wrote to memory of 2516	3984	INQUIRY_SK91403BWK.exe	76
PID 3984 wrote to memory of 2516	3984	INQUIRY_SK91403BWK.exe	76
PID 3984 wrote to memory of 2516	3984	INQUIRY_SK91403BWK.exe	76
PID 3984 wrote to memory of 2152	3984	INQUIRY_SK91403BWK.exe	78
PID 3984 wrote to memory of 2152	3984	INQUIRY_SK91403BWK.exe	78
PID 3984 wrote to memory of 2152	3984	INQUIRY_SK91403BWK.exe	78
PID 3984 wrote to memory of 2152	3984	INQUIRY_SK91403BWK.exe	78
PID 3984 wrote to memory of 2152	3984	INQUIRY_SK91403BWK.exe	78
PID 3984 wrote to memory of 2152	3984	INQUIRY_SK91403BWK.exe	78
PID 3984 wrote to memory of 2152	3984	INQUIRY_SK91403BWK.exe	78
PID 3984 wrote to memory of 2152	3984	INQUIRY_SK91403BWK.exe	78

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INQUIRY_SK91403BWK.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INQUIRY_SK91403BWK.exe

C:\Users\Admin\AppData\Local\Temp\INQUIRY_SK91403BWK.exe
"C:\Users\Admin\AppData\Local\Temp\INQUIRY_SK91403BWK.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3984
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\INQUIRY_SK91403BWK.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3944
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RDwAbliLFmy.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3796
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RDwAbliLFmy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp48E8.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2516
- C:\Users\Admin\AppData\Local\Temp\INQUIRY_SK91403BWK.exe
  "C:\Users\Admin\AppData\Local\Temp\INQUIRY_SK91403BWK.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:2152

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:4052

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
PID:1148

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2152-154-0x00000000748FE000-0x00000000748FF000-memory.dmp

Download

memory/2152-145-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/2152-176-0x00000000067C0000-0x0000000006810000-memory.dmp

Download

memory/2152-155-0x00000000055C0000-0x00000000055C1000-memory.dmp

Download

memory/3796-158-0x0000000006995000-0x0000000006997000-memory.dmp

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memory/3796-148-0x0000000007890000-0x00000000078F6000-memory.dmp

Download

memory/3796-143-0x0000000006FD0000-0x00000000075F8000-memory.dmp

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memory/3796-166-0x0000000009200000-0x000000000921A000-memory.dmp

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memory/3796-169-0x0000000009440000-0x000000000944E000-memory.dmp

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memory/3796-146-0x0000000006E20000-0x0000000006E42000-memory.dmp

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memory/3796-170-0x0000000009550000-0x000000000956A000-memory.dmp

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memory/3796-168-0x0000000009490000-0x0000000009526000-memory.dmp

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memory/3796-163-0x000000007FBB0000-0x000000007FBB1000-memory.dmp

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memory/3796-164-0x0000000009850000-0x0000000009ECA000-memory.dmp

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memory/3796-151-0x00000000748FE000-0x00000000748FF000-memory.dmp

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memory/3796-152-0x0000000006990000-0x0000000006991000-memory.dmp

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memory/3796-153-0x0000000006992000-0x0000000006993000-memory.dmp

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memory/3796-162-0x0000000008490000-0x00000000084AE000-memory.dmp

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memory/3796-160-0x0000000070D60000-0x0000000070DAC000-memory.dmp

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memory/3944-147-0x0000000006E00000-0x0000000006E66000-memory.dmp

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memory/3944-140-0x0000000004280000-0x00000000042B6000-memory.dmp

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memory/3944-157-0x0000000006875000-0x0000000006877000-memory.dmp

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memory/3944-159-0x00000000081D0000-0x0000000008202000-memory.dmp

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memory/3944-161-0x0000000070D60000-0x0000000070DAC000-memory.dmp

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memory/3944-156-0x0000000007BA0000-0x0000000007BBE000-memory.dmp

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memory/3944-171-0x00000000091E0000-0x00000000091E8000-memory.dmp

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memory/3944-150-0x0000000006872000-0x0000000006873000-memory.dmp

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memory/3944-149-0x0000000006870000-0x0000000006871000-memory.dmp

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memory/3944-139-0x00000000748FE000-0x00000000748FF000-memory.dmp

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memory/3944-165-0x000000007FDA0000-0x000000007FDA1000-memory.dmp

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memory/3944-167-0x0000000008F20000-0x0000000008F2A000-memory.dmp

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memory/3984-134-0x00000000052F0000-0x00000000052F1000-memory.dmp

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memory/3984-133-0x0000000005010000-0x00000000050A2000-memory.dmp

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memory/3984-136-0x0000000007300000-0x000000000739C000-memory.dmp

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memory/3984-130-0x00000000748FE000-0x00000000748FF000-memory.dmp

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memory/3984-132-0x00000000056B0000-0x0000000005C54000-memory.dmp

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memory/3984-131-0x0000000000570000-0x000000000066A000-memory.dmp

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memory/3984-135-0x0000000005000000-0x000000000500A000-memory.dmp

Download