agenttesla | daccd93e099119d1c54b6d855d0a9db24e1ebd8eea974badb1ff6d8f0e01865f

General

Target
DOCUMENTS.pdf.exe
Size 618KB
Sample200809-e6b9rrh3ya
SHA256 daccd93e099119d1c54b6d855d0a9db24e1ebd8eea974badb1ff6d8f0e01865f
MD5 1eee2f6e8d98a4229fa3d0100ca02f40
SHA1 281880040284f92e77498023925744f3a0efb6bb
SHA512 026aee31d90b84ad5f3f74eee7e2d11df0488c5bd13afffd66938df90b4a3cadb52a20085b0c793088a2fab5e791acc59e5bb15a633819d56b7cde3f7fa10444
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
smtp.palcoman.com
Port
587
Username
[email protected]
Password
GgwWVBJ5

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
behavioral1/memory/1892-8-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1892-9-0x000000000044748E-mapping.dmp	family_agenttesla
behavioral1/memory/1892-10-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1892-11-0x0000000000400000-0x000000000044C000-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-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\gKWBf = "C:\\Users\\Admin\\AppData\\Roaming\\gKWBf\\gKWBf.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1152 set thread context of 1892	1152	DOCUMENTS.pdf.exe	26

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
1796	schtasks.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1380	REG.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1152	DOCUMENTS.pdf.exe
1152	DOCUMENTS.pdf.exe
1152	DOCUMENTS.pdf.exe
1892	RegSvcs.exe
1892	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1152	DOCUMENTS.pdf.exe
Token: SeDebugPrivilege	1892	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1152 wrote to memory of 1796	1152	DOCUMENTS.pdf.exe	24
PID 1152 wrote to memory of 1796	1152	DOCUMENTS.pdf.exe	24
PID 1152 wrote to memory of 1796	1152	DOCUMENTS.pdf.exe	24
PID 1152 wrote to memory of 1796	1152	DOCUMENTS.pdf.exe	24
PID 1152 wrote to memory of 1892	1152	DOCUMENTS.pdf.exe	26
PID 1152 wrote to memory of 1892	1152	DOCUMENTS.pdf.exe	26
PID 1152 wrote to memory of 1892	1152	DOCUMENTS.pdf.exe	26
PID 1152 wrote to memory of 1892	1152	DOCUMENTS.pdf.exe	26
PID 1152 wrote to memory of 1892	1152	DOCUMENTS.pdf.exe	26
PID 1152 wrote to memory of 1892	1152	DOCUMENTS.pdf.exe	26
PID 1152 wrote to memory of 1892	1152	DOCUMENTS.pdf.exe	26
PID 1152 wrote to memory of 1892	1152	DOCUMENTS.pdf.exe	26
PID 1152 wrote to memory of 1892	1152	DOCUMENTS.pdf.exe	26
PID 1152 wrote to memory of 1892	1152	DOCUMENTS.pdf.exe	26
PID 1152 wrote to memory of 1892	1152	DOCUMENTS.pdf.exe	26
PID 1152 wrote to memory of 1892	1152	DOCUMENTS.pdf.exe	26
PID 1892 wrote to memory of 1380	1892	RegSvcs.exe	30
PID 1892 wrote to memory of 1380	1892	RegSvcs.exe	30
PID 1892 wrote to memory of 1380	1892	RegSvcs.exe	30
PID 1892 wrote to memory of 1380	1892	RegSvcs.exe	30

C:\Users\Admin\AppData\Local\Temp\DOCUMENTS.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\DOCUMENTS.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JYOSRpg" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC753.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1796
- 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
  - Suspicious use of WriteProcessMemory
  PID:1892
- - C:\Windows\SysWOW64\REG.exe
    REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
    3⤵
    - Modifies registry key
    PID:1380

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

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1152-4-0x0000000000B30000-0x0000000000B88000-memory.dmp

Download

memory/1152-3-0x00000000003D0000-0x00000000003D8000-memory.dmp

Download

memory/1152-0-0x0000000073B20000-0x000000007420E000-memory.dmp

Download

memory/1152-5-0x0000000002110000-0x0000000002157000-memory.dmp

Download

memory/1152-1-0x0000000000B90000-0x0000000000B91000-memory.dmp

Download

memory/1892-8-0x0000000000400000-0x000000000044C000-memory.dmp

Download

memory/1892-10-0x0000000000400000-0x000000000044C000-memory.dmp

Download

memory/1892-11-0x0000000000400000-0x000000000044C000-memory.dmp

Download

memory/1892-13-0x0000000073B20000-0x000000007420E000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads