agenttesla | f22e0e86d77e67ae822fbd78fef1108767918aec0df59bc554e0378a45a4c068

Analysis

max time kernel
75s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
28/12/2022, 09:29

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General

Target
Commercial Invoice & Packing List.exe
Size 794KB
Sample221228-lfw7saaa97
SHA256 f22e0e86d77e67ae822fbd78fef1108767918aec0df59bc554e0378a45a4c068
MD5 8075dac8cac7eb3be764304f7507382a
SHA1 2029f7ecb0cfc44070ca7175a59bd77708ace9a7
SHA512 13d9a79c223193a2396325304b36174047137775db561877411cc8a2c7ef0268eae05ec375c7c24e7f9136e1b48f9208189080e1d3eb2de7ed77c3fcd4eda9a8
SSDEEP 12288:nTtGRAuLfybbgjmXoXDYKSTtdS7laL7Zx:nTtG2uLf0YDYDaaXZx
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.dmstech.in
Port
587
Username
[email protected]
Password
0]6F9Az.pqfd
Email to
[email protected]

Signatures

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\zBwkauB = "C:\\Users\\Admin\\AppData\\Roaming\\zBwkauB\\zBwkauB.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1964 set thread context of 1280	1964	Commercial Invoice & Packing List.exe	30

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
1312	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1964	Commercial Invoice & Packing List.exe
1280	RegSvcs.exe
1280	RegSvcs.exe
1280	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1964	Commercial Invoice & Packing List.exe
Token: SeDebugPrivilege	1280	RegSvcs.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 1312	1964	Commercial Invoice & Packing List.exe	28
PID 1964 wrote to memory of 1312	1964	Commercial Invoice & Packing List.exe	28
PID 1964 wrote to memory of 1312	1964	Commercial Invoice & Packing List.exe	28
PID 1964 wrote to memory of 1312	1964	Commercial Invoice & Packing List.exe	28
PID 1964 wrote to memory of 1280	1964	Commercial Invoice & Packing List.exe	30
PID 1964 wrote to memory of 1280	1964	Commercial Invoice & Packing List.exe	30
PID 1964 wrote to memory of 1280	1964	Commercial Invoice & Packing List.exe	30
PID 1964 wrote to memory of 1280	1964	Commercial Invoice & Packing List.exe	30
PID 1964 wrote to memory of 1280	1964	Commercial Invoice & Packing List.exe	30
PID 1964 wrote to memory of 1280	1964	Commercial Invoice & Packing List.exe	30
PID 1964 wrote to memory of 1280	1964	Commercial Invoice & Packing List.exe	30
PID 1964 wrote to memory of 1280	1964	Commercial Invoice & Packing List.exe	30
PID 1964 wrote to memory of 1280	1964	Commercial Invoice & Packing List.exe	30
PID 1964 wrote to memory of 1280	1964	Commercial Invoice & Packing List.exe	30
PID 1964 wrote to memory of 1280	1964	Commercial Invoice & Packing List.exe	30
PID 1964 wrote to memory of 1280	1964	Commercial Invoice & Packing List.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Commercial Invoice & Packing List.exe
"C:\Users\Admin\AppData\Local\Temp\Commercial Invoice & Packing List.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mpXhewpenTxFix" /XML "C:\Users\Admin\AppData\Local\Temp\tmp76C6.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1312
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1280

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

tmp76C6.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp76C6.tmp
Size 1KB
SHA256 0d5d0db358bd6fc92aef79101000f22e8997d65cf8933847f849d9de0e7903c8
MD5 1c3b778816f68b043beff0b6e4365e68
SHA1 53e38ce162f5ee3090b564585d3be88576935c2b
SHA512 c44214eb1f1c3ef8eb94f2206f2cf2ba090a3fc055f15faeb79f17c763b64204aff9cf4b5531fddb0ab212f0f905805519bcc6c0970334fafba034da9a009622
MD5 SHA1 SHA512

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memory/1280-64-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1280-66-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1280-71-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1280-69-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1280-65-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1280-61-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1280-62-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1964-54-0x0000000001110000-0x00000000011DC000-memory.dmp

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memory/1964-55-0x0000000076411000-0x0000000076413000-memory.dmp

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memory/1964-56-0x0000000000270000-0x0000000000282000-memory.dmp

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memory/1964-58-0x0000000000BE0000-0x0000000000C1C000-memory.dmp

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memory/1964-57-0x0000000004EF0000-0x0000000004F74000-memory.dmp

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