agenttesla | 40ccb45b307f55135d9e754e4ef2033b9a6ac4c84596b0c6b4962d54221de710

Analysis

max time kernel
134s
max time network
103s
platform
windows10_x64
resource
win10v20210408
submitted
01/10/2021, 07:56

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General

Target
DOCUMENTS.exe
Size 1.1MB
Sample211001-jspmcsbccm
SHA256 40ccb45b307f55135d9e754e4ef2033b9a6ac4c84596b0c6b4962d54221de710
MD5 6975893d5ccd286e04b879fdaf077393
SHA1 097ebc716d77adfa2a560b5d01871d7fdbecf805
SHA512 39324c55efaa8af35889b2e04bd994c31a1212ab26feaad51a838cd33c2f06784c36b177646e8afb0cfdcdbf762ed70687f272f1bd2d7122390c1bda9aa4dc2d
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.pas-shipping.com
Port
587
Username
[email protected]
Password
Yaali121$PASshipping

Signatures

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

AgentTesla Payload 4 IoCs

resource	yara_rule
behavioral2/memory/3892-127-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/3892-128-0x000000000043782E-mapping.dmp	family_agenttesla
behavioral2/memory/3892-133-0x0000000005060000-0x000000000555E000-memory.dmp	family_agenttesla
behavioral2/memory/3892-138-0x0000000005060000-0x000000000555E000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	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-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\tKZVPq = "C:\\Users\\Admin\\AppData\\Roaming\\tKZVPq\\tKZVPq.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4796 set thread context of 3892	4796	DOCUMENTS.exe	76

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
732	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
4796	DOCUMENTS.exe
4796	DOCUMENTS.exe
4796	DOCUMENTS.exe
4796	DOCUMENTS.exe
4796	DOCUMENTS.exe
3892	RegSvcs.exe
3892	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4796	DOCUMENTS.exe
Token: SeDebugPrivilege	3892	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4796 wrote to memory of 732	4796	DOCUMENTS.exe	72
PID 4796 wrote to memory of 732	4796	DOCUMENTS.exe	72
PID 4796 wrote to memory of 732	4796	DOCUMENTS.exe	72
PID 4796 wrote to memory of 2868	4796	DOCUMENTS.exe	74
PID 4796 wrote to memory of 2868	4796	DOCUMENTS.exe	74
PID 4796 wrote to memory of 2868	4796	DOCUMENTS.exe	74
PID 4796 wrote to memory of 3868	4796	DOCUMENTS.exe	75
PID 4796 wrote to memory of 3868	4796	DOCUMENTS.exe	75
PID 4796 wrote to memory of 3868	4796	DOCUMENTS.exe	75
PID 4796 wrote to memory of 3892	4796	DOCUMENTS.exe	76
PID 4796 wrote to memory of 3892	4796	DOCUMENTS.exe	76
PID 4796 wrote to memory of 3892	4796	DOCUMENTS.exe	76
PID 4796 wrote to memory of 3892	4796	DOCUMENTS.exe	76
PID 4796 wrote to memory of 3892	4796	DOCUMENTS.exe	76
PID 4796 wrote to memory of 3892	4796	DOCUMENTS.exe	76
PID 4796 wrote to memory of 3892	4796	DOCUMENTS.exe	76
PID 4796 wrote to memory of 3892	4796	DOCUMENTS.exe	76

C:\Users\Admin\AppData\Local\Temp\DOCUMENTS.exe
"C:\Users\Admin\AppData\Local\Temp\DOCUMENTS.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4796
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bJvZUc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF17F.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:732
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  PID:2868
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  PID:3868
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3892

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

Command and Control

Exfiltration

Impact

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Downloads

memory/3892-138-0x0000000005060000-0x000000000555E000-memory.dmp

Download

memory/3892-135-0x0000000005D50000-0x0000000005D51000-memory.dmp

Download

memory/3892-134-0x0000000005070000-0x0000000005071000-memory.dmp

Download

memory/3892-133-0x0000000005060000-0x000000000555E000-memory.dmp

Download

memory/3892-127-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/4796-119-0x0000000005830000-0x0000000005831000-memory.dmp

Download

memory/4796-124-0x00000000094D0000-0x0000000009508000-memory.dmp

Download

memory/4796-123-0x0000000009640000-0x00000000096B5000-memory.dmp

Download

memory/4796-122-0x0000000005310000-0x000000000531E000-memory.dmp

Download

memory/4796-121-0x00000000059D0000-0x0000000005ECE000-memory.dmp

Download

memory/4796-120-0x0000000005BB0000-0x0000000005BB1000-memory.dmp

Download

memory/4796-114-0x0000000000F10000-0x0000000000F11000-memory.dmp

Download

memory/4796-118-0x00000000059D0000-0x00000000059D1000-memory.dmp

Download

memory/4796-117-0x0000000005ED0000-0x0000000005ED1000-memory.dmp

Download

memory/4796-116-0x0000000005930000-0x0000000005931000-memory.dmp

Download