agenttesla | f5e569abf12e1a85aecfcdfe9dd84ce7ca2235c59a8c357c257ac5005645ef80

Analysis

max time kernel
72s
max time network
50s
platform
windows7_x64
resource
win7-20220414-en
submitted
17/06/2022, 05:54

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General

Target
Request Quotation.exe
Size 619KB
Sample220617-glv5fsdbe2
SHA256 f5e569abf12e1a85aecfcdfe9dd84ce7ca2235c59a8c357c257ac5005645ef80
MD5 ea879ef4e85e7a4661c3a42f52207adb
SHA1 47f65465a5fe2536e101315f4f4a5bd4bea0597c
SHA512 74f445f9ee802ba075ba08d212812fa669f73c78b5eaa0dc43288c90771ea8d1a058edcf8797ed1971ace2176ec28d28bbfab8adc94b478e1a3e20abd59033ca
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.perfecta-tn.com
Port
587
Username
[email protected]
Password
?Per#fec!ta?15
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	RegSvcs.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\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-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\yqWDN = "C:\\Users\\Admin\\AppData\\Roaming\\yqWDN\\yqWDN.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1956 set thread context of 1740	1956	Request Quotation.exe	29

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
1744	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1956	Request Quotation.exe
1740	RegSvcs.exe
1740	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1956	Request Quotation.exe
Token: SeDebugPrivilege	1740	RegSvcs.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 1744	1956	Request Quotation.exe	27
PID 1956 wrote to memory of 1744	1956	Request Quotation.exe	27
PID 1956 wrote to memory of 1744	1956	Request Quotation.exe	27
PID 1956 wrote to memory of 1744	1956	Request Quotation.exe	27
PID 1956 wrote to memory of 1740	1956	Request Quotation.exe	29
PID 1956 wrote to memory of 1740	1956	Request Quotation.exe	29
PID 1956 wrote to memory of 1740	1956	Request Quotation.exe	29
PID 1956 wrote to memory of 1740	1956	Request Quotation.exe	29
PID 1956 wrote to memory of 1740	1956	Request Quotation.exe	29
PID 1956 wrote to memory of 1740	1956	Request Quotation.exe	29
PID 1956 wrote to memory of 1740	1956	Request Quotation.exe	29
PID 1956 wrote to memory of 1740	1956	Request Quotation.exe	29
PID 1956 wrote to memory of 1740	1956	Request Quotation.exe	29
PID 1956 wrote to memory of 1740	1956	Request Quotation.exe	29
PID 1956 wrote to memory of 1740	1956	Request Quotation.exe	29
PID 1956 wrote to memory of 1740	1956	Request Quotation.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Request Quotation.exe
"C:\Users\Admin\AppData\Local\Temp\Request Quotation.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CuTGDKKovsBzGA" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8A27.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1744
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1740

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

tmp8A27.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp8A27.tmp
Size 1KB
SHA256 1f904d60ed5010a47fe75bebbb71f6ecd5bcb622ce37ac5a272171c193d277f3
MD5 27425fc1a6b9d61771644629d4681f9d
SHA1 937066e07d3762c079fafa2ebad8439ad22cab45
SHA512 ea62f283a9f7685ea3f7d2fc13da780ccfa4030e3bd76e30a584571afc3e50226c5045387f5d8326122478d3b71f556f3c5f70d236f49b8ae303f5d47e1ba6c4
MD5 SHA1 SHA512

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memory/1740-64-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1740-66-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1740-71-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1740-69-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1740-65-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1740-61-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1740-62-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1956-54-0x00000000013E0000-0x0000000001480000-memory.dmp

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memory/1956-55-0x0000000075DB1000-0x0000000075DB3000-memory.dmp

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memory/1956-56-0x00000000003E0000-0x00000000003EA000-memory.dmp

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memory/1956-58-0x0000000000BB0000-0x0000000000BEA000-memory.dmp

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memory/1956-57-0x0000000005240000-0x00000000052C2000-memory.dmp

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