agenttesla | 66fcc078741968b04e45e850256bcf6f64506fd143a5b9ebf31b5244d423e277

General

Target

purchase order.exe
Size

955KB
MD5

83027ceebd07df0f927f780be4dbc729
SHA1

acbc3142cac50ab28474f5c8945585e2c07ba81d
SHA256

66fcc078741968b04e45e850256bcf6f64506fd143a5b9ebf31b5244d423e277
SHA512

c7516c61db56217fa75817f93242ecd5c1add40a59d8cda221f51d6199e11817bc31c8cc808cde3377aa1df1266a6ad36f5022a21163ae4d1d39ece4e18ff2ee
SSDEEP

24576:4p1/YGDkjwJsoGlWM9STNNS/GoqMUwwhvgoK3:4ptY5UsoGlxZ/GotU/v

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5615947415:AAHTRsWQ236jQ31p3gNngAMLROoKsqd6tPs/

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware 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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	purchase order.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-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DfdZo = "C:\\Users\\Admin\\AppData\\Roaming\\DfdZo\\DfdZo.exe"	purchase order.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
52	api.ipify.org
53	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1480 set thread context of 3784	1480	purchase order.exe	89

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
1780	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1480	purchase order.exe
4940	powershell.exe
1396	powershell.exe
1480	purchase order.exe
4940	powershell.exe
1396	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1480	purchase order.exe
Token: SeDebugPrivilege	4940	powershell.exe
Token: SeDebugPrivilege	1396	powershell.exe
Token: SeDebugPrivilege	3784	purchase order.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1480 wrote to memory of 4940	1480	purchase order.exe	83
PID 1480 wrote to memory of 4940	1480	purchase order.exe	83
PID 1480 wrote to memory of 4940	1480	purchase order.exe	83
PID 1480 wrote to memory of 1396	1480	purchase order.exe	85
PID 1480 wrote to memory of 1396	1480	purchase order.exe	85
PID 1480 wrote to memory of 1396	1480	purchase order.exe	85
PID 1480 wrote to memory of 1780	1480	purchase order.exe	87
PID 1480 wrote to memory of 1780	1480	purchase order.exe	87
PID 1480 wrote to memory of 1780	1480	purchase order.exe	87
PID 1480 wrote to memory of 3784	1480	purchase order.exe	89
PID 1480 wrote to memory of 3784	1480	purchase order.exe	89
PID 1480 wrote to memory of 3784	1480	purchase order.exe	89
PID 1480 wrote to memory of 3784	1480	purchase order.exe	89
PID 1480 wrote to memory of 3784	1480	purchase order.exe	89
PID 1480 wrote to memory of 3784	1480	purchase order.exe	89
PID 1480 wrote to memory of 3784	1480	purchase order.exe	89
PID 1480 wrote to memory of 3784	1480	purchase order.exe	89

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe

C:\Users\Admin\AppData\Local\Temp\purchase order.exe
"C:\Users\Admin\AppData\Local\Temp\purchase order.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1480
- 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\purchase order.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4940
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hUkqfyOvIRph.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1396
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hUkqfyOvIRph" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7819.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1780
- C:\Users\Admin\AppData\Local\Temp\purchase order.exe
  "C:\Users\Admin\AppData\Local\Temp\purchase order.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3784

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache

Filesize
53KB

MD5
2e78d4469d81d67193bda790789bc661

SHA1
173ba6253abaddc0bb245a9cbdf4dc732b03ed41

SHA256
54c15d752e6ccec18ca3a7b01e61674134087e0a228580c7077e2cc7d7c4a5fe

SHA512
8f66efcb2c908db1167c1d5bcf5ca0dfdacf9b34f56e2aa488fda35ae1e80092dcf03fd0673f99c1c228aa8e48fbe75b819c9cf97cd28be57b945072c93920a4

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
53ca0068174cff02013268d387c76ca1

SHA1
a6638bf0ac7ca7b25cdbc9492a8dccaf3ca883b0

SHA256
5e94ea09158b7572b7be1fb500fab544bf9768d62f437a14962aab965a9259ab

SHA512
0a7599e0e37570b262c6e4a5b4f822ab6a4b301d8eb02dd9490f342656829631a905e9556ec3f51cb1f1a5dd0c8ce050c28389e607d0e9d58b272ac9214d6e2f

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp7819.tmp

Filesize
1KB

MD5
f996e48aac90e9b6cf7b7004eda96cf0

SHA1
49cf11f5a2016f1ce6fba823174307db6f2e31a3

SHA256
93c6a2b04f84c80e51fef02816fb8e44ceac92ed2f8439663b44a1a96dcd9f09

SHA512
4183541ecef30756a2f03b72523ffb9f0595d0da1b046451640187878434d7703c82200a0a3abf12195129c024a5ffff78763609ffd0414e32f63b0b64e8967a

Download Submit
memory/1396-138-0x0000000000000000-mapping.dmp

Download
memory/1396-152-0x0000000006130000-0x000000000614E000-memory.dmp

Filesize
120KB

Download
memory/1396-155-0x0000000006EF0000-0x0000000006EFA000-memory.dmp

Filesize
40KB

Download
memory/1396-148-0x0000000005B80000-0x0000000005B9E000-memory.dmp

Filesize
120KB

Download
memory/1396-147-0x0000000005520000-0x0000000005586000-memory.dmp

Filesize
408KB

Download
memory/1396-141-0x0000000004EF0000-0x0000000005518000-memory.dmp

Filesize
6.2MB

Download
memory/1396-154-0x0000000006E80000-0x0000000006E9A000-memory.dmp

Filesize
104KB

Download
memory/1396-150-0x00000000714A0000-0x00000000714EC000-memory.dmp

Filesize
304KB

Download
memory/1396-145-0x0000000004CD0000-0x0000000004D36000-memory.dmp

Filesize
408KB

Download
memory/1396-159-0x00000000071B0000-0x00000000071B8000-memory.dmp

Filesize
32KB

Download
memory/1480-136-0x00000000076D0000-0x000000000776C000-memory.dmp

Filesize
624KB

Download
memory/1480-132-0x0000000000530000-0x0000000000626000-memory.dmp

Filesize
984KB

Download
memory/1480-135-0x0000000005070000-0x000000000507A000-memory.dmp

Filesize
40KB

Download
memory/1480-134-0x0000000004FD0000-0x0000000005062000-memory.dmp

Filesize
584KB

Download
memory/1480-133-0x0000000005670000-0x0000000005C14000-memory.dmp

Filesize
5.6MB

Download
memory/1780-139-0x0000000000000000-mapping.dmp

Download
memory/3784-161-0x0000000006DB0000-0x0000000006E00000-memory.dmp

Filesize
320KB

Download
memory/3784-146-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/3784-144-0x0000000000000000-mapping.dmp

Download
memory/3784-162-0x0000000007110000-0x00000000072D2000-memory.dmp

Filesize
1.8MB

Download
memory/4940-153-0x00000000073E0000-0x0000000007A5A000-memory.dmp

Filesize
6.5MB

Download
memory/4940-149-0x0000000006070000-0x00000000060A2000-memory.dmp

Filesize
200KB

Download
memory/4940-156-0x0000000007020000-0x00000000070B6000-memory.dmp

Filesize
600KB

Download
memory/4940-157-0x0000000006FE0000-0x0000000006FEE000-memory.dmp

Filesize
56KB

Download
memory/4940-158-0x00000000070F0000-0x000000000710A000-memory.dmp

Filesize
104KB

Download
memory/4940-143-0x0000000004AF0000-0x0000000004B12000-memory.dmp

Filesize
136KB

Download
memory/4940-151-0x00000000714A0000-0x00000000714EC000-memory.dmp

Filesize
304KB

Download
memory/4940-140-0x00000000044E0000-0x0000000004516000-memory.dmp

Filesize
216KB

Download
memory/4940-137-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads