agenttesla | b25050da3db1fef64eb447fdbcd2a4c2248fc32a7be362cea35094449250381f

Analysis

max time kernel
139s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20220331-en
submitted
12/04/2022, 15:31

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General

Target
CCF_008089.exe
Size 858KB
Sample220412-sx2bdsdaer
SHA256 b25050da3db1fef64eb447fdbcd2a4c2248fc32a7be362cea35094449250381f
MD5 ae7bcfcb1988e2f5d6049a69fa62660f
SHA1 973086c5da21d7a88b8540e8c6c5f846c85fb754
SHA512 ac68cd387bd682661aa17642cbf841122c40e1709f7e75389ad5e4901ce26280efcc908c15c5245fe1079944766d00a436632b592587ea9f0d30faefc3910a6a
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol
smtp
Host
mail.majulah.com.sg
Port
587
Username
[email protected]
Password
P@ssword12345

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.majulah.com.sg
Port
587
Username
[email protected]
Password
P@ssword12345
Email to
[email protected]

Signatures

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

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	CCF_008089.exe

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-1-5-21-157025953-3125636059-437143553-1000\Control Panel\International\Geo\Nation	CCF_008089.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-1-5-21-157025953-3125636059-437143553-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CCF_008089.exe
Key opened	\REGISTRY\USER\S-1-5-21-157025953-3125636059-437143553-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CCF_008089.exe
Key opened	\REGISTRY\USER\S-1-5-21-157025953-3125636059-437143553-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CCF_008089.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4688 set thread context of 3648	4688	CCF_008089.exe	98

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

System Information Discovery
T1082

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
4828	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
4688	CCF_008089.exe
4860	powershell.exe
2216	powershell.exe
4688	CCF_008089.exe
4688	CCF_008089.exe
4688	CCF_008089.exe
4688	CCF_008089.exe
4688	CCF_008089.exe
2216	powershell.exe
4860	powershell.exe
3648	CCF_008089.exe
3648	CCF_008089.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4688	CCF_008089.exe
Token: SeDebugPrivilege	2216	powershell.exe
Token: SeDebugPrivilege	4860	powershell.exe
Token: SeDebugPrivilege	3648	CCF_008089.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4688 wrote to memory of 2216	4688	CCF_008089.exe	91
PID 4688 wrote to memory of 2216	4688	CCF_008089.exe	91
PID 4688 wrote to memory of 2216	4688	CCF_008089.exe	91
PID 4688 wrote to memory of 4860	4688	CCF_008089.exe	93
PID 4688 wrote to memory of 4860	4688	CCF_008089.exe	93
PID 4688 wrote to memory of 4860	4688	CCF_008089.exe	93
PID 4688 wrote to memory of 4828	4688	CCF_008089.exe	95
PID 4688 wrote to memory of 4828	4688	CCF_008089.exe	95
PID 4688 wrote to memory of 4828	4688	CCF_008089.exe	95
PID 4688 wrote to memory of 1148	4688	CCF_008089.exe	97
PID 4688 wrote to memory of 1148	4688	CCF_008089.exe	97
PID 4688 wrote to memory of 1148	4688	CCF_008089.exe	97
PID 4688 wrote to memory of 1164	4688	CCF_008089.exe	99
PID 4688 wrote to memory of 1164	4688	CCF_008089.exe	99
PID 4688 wrote to memory of 1164	4688	CCF_008089.exe	99
PID 4688 wrote to memory of 3648	4688	CCF_008089.exe	98
PID 4688 wrote to memory of 3648	4688	CCF_008089.exe	98
PID 4688 wrote to memory of 3648	4688	CCF_008089.exe	98
PID 4688 wrote to memory of 3648	4688	CCF_008089.exe	98
PID 4688 wrote to memory of 3648	4688	CCF_008089.exe	98
PID 4688 wrote to memory of 3648	4688	CCF_008089.exe	98
PID 4688 wrote to memory of 3648	4688	CCF_008089.exe	98
PID 4688 wrote to memory of 3648	4688	CCF_008089.exe	98

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-157025953-3125636059-437143553-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CCF_008089.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-157025953-3125636059-437143553-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CCF_008089.exe

C:\Users\Admin\AppData\Local\Temp\CCF_008089.exe
"C:\Users\Admin\AppData\Local\Temp\CCF_008089.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4688
- 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\CCF_008089.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2216
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZAdswUWQxrJstu.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4860
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZAdswUWQxrJstu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA12.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4828
- C:\Users\Admin\AppData\Local\Temp\CCF_008089.exe
  "C:\Users\Admin\AppData\Local\Temp\CCF_008089.exe"
  2⤵
  PID:1148
- C:\Users\Admin\AppData\Local\Temp\CCF_008089.exe
  "C:\Users\Admin\AppData\Local\Temp\CCF_008089.exe"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3648
- C:\Users\Admin\AppData\Local\Temp\CCF_008089.exe
  "C:\Users\Admin\AppData\Local\Temp\CCF_008089.exe"
  2⤵
  PID:1164

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

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Downloads

CCF_008089.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\CCF_008089.exe.log
Size 1KB
SHA256 bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7
MD5 e08f822522c617a40840c62e4b0fb45e
SHA1 ae516dca4da5234be6676d3f234c19ec55725be7
SHA512 894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4
MD5 SHA1 SHA512

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powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Size 2KB
SHA256 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
MD5 968cb9309758126772781b83adb8a28f
SHA1 8da30e71accf186b2ba11da1797cf67f8f78b47c
SHA512 4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 18KB
SHA256 45955bfe80eab4d4524cd873f23a3d5fba9cc237c2215e7f8a70c715fb26c45c
MD5 3d827515aac78f235e297ec465961a76
SHA1 f75a814171d9a8a78419fca77099ecbf868ceae1
SHA512 1a9f4617903c0b70c049af3ddc8de6b5443d4f5e49ce23508078b562c3370ece3c8affe44dbfc0ced90a72a1e6446907c8a9f5bd18be7163f523b31317c3c7bc
SSDEEP 384:4sf+B69i+mYRTIa0BpzJk+o9oJ6TVK6seYLME/B03SoZmfYSgojEDkSQ0gdMtkKF:Vfiit0zejoJ6TVNgrqSBW2ED/Cm3
MD5 SHA1 SHA512 SSDEEP

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tmpA12.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpA12.tmp
Size 1KB
SHA256 2f8bec908fd63b4263f694fee4eed2f97917045fba5e2e86d2d0c927d9bd8a58
MD5 e8a3b95250833473d4404698d7e3c047
SHA1 8419d249341a92bf648b52d107909937d7e99828
SHA512 1ff97d0620a25eae052a6ae6e692fc2259761804ca50ea86816927f625c00fed8c5a94da6ff3b5ceaf59317263ebb9d0c64d0659ca1cbd248051eb9f4377a5a1
MD5 SHA1 SHA512

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memory/2216-150-0x00000000081F0000-0x000000000886A000-memory.dmp

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memory/2216-148-0x0000000005505000-0x0000000005507000-memory.dmp

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memory/2216-134-0x0000000005B40000-0x0000000006168000-memory.dmp

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memory/2216-132-0x0000000002F90000-0x0000000002FC6000-memory.dmp

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memory/2216-136-0x00000000057D0000-0x00000000057F2000-memory.dmp

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memory/2216-152-0x0000000007C10000-0x0000000007C1A000-memory.dmp

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memory/2216-147-0x0000000006E50000-0x0000000006E6E000-memory.dmp

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memory/2216-145-0x0000000071000000-0x000000007104C000-memory.dmp

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memory/2216-154-0x0000000007DD0000-0x0000000007DDE000-memory.dmp

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memory/3648-157-0x0000000006950000-0x00000000069A0000-memory.dmp

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memory/3648-141-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/4688-129-0x0000000008CD0000-0x0000000008D36000-memory.dmp

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memory/4688-125-0x00000000052A0000-0x0000000005844000-memory.dmp

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memory/4688-126-0x0000000004C10000-0x0000000004CA2000-memory.dmp

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memory/4688-127-0x0000000004BD0000-0x0000000004BDA000-memory.dmp

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memory/4688-128-0x0000000008800000-0x000000000889C000-memory.dmp

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memory/4688-124-0x0000000000140000-0x000000000021C000-memory.dmp

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memory/4860-149-0x0000000002445000-0x0000000002447000-memory.dmp

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memory/4860-151-0x0000000006EF0000-0x0000000006F0A000-memory.dmp

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memory/4860-146-0x0000000071000000-0x000000007104C000-memory.dmp

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memory/4860-153-0x0000000007170000-0x0000000007206000-memory.dmp

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memory/4860-144-0x0000000006BA0000-0x0000000006BD2000-memory.dmp

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memory/4860-155-0x0000000007230000-0x000000000724A000-memory.dmp

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memory/4860-156-0x0000000007210000-0x0000000007218000-memory.dmp

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memory/4860-143-0x0000000005BF0000-0x0000000005C0E000-memory.dmp

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memory/4860-137-0x0000000005450000-0x00000000054B6000-memory.dmp

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