agenttesla | c3624982c4e27761f6d132bb33b9fd3618642fdc0cc5949a6207ceef392b3d8a

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7v20201028
submitted
03/03/2021, 07:50

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General

Target
PO N4pdf.exe
Size 668KB
Sample210303-wwe9eldpl6
SHA256 c3624982c4e27761f6d132bb33b9fd3618642fdc0cc5949a6207ceef392b3d8a
MD5 743561ddf77a06e75f05ce0788df2d77
SHA1 03b1254537ef31b3981a64c0ceaa1fe3b4bd9b32
SHA512 29c686b1f33254ea66dc7352cbc941b9edc90860eddedfc960eac56147373391f40ea90fc59e27fc4f753beedc1f836618a6546043a8968be02bf3e8963ecbed
MD5 SHA1 SHA512

Score

10^/10

agenttesla agilenet keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
smtp.marnner.com
Port
587
Username
[email protected]
Password
Sync@#1235

Signatures

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

AgentTesla Payload 3 IoCs

resource	yara_rule
behavioral1/memory/1824-24-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1824-25-0x00000000004374DE-mapping.dmp	family_agenttesla
behavioral1/memory/1824-28-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

pid	Process
1724	ak.exe
1824	ak.exe

Loads dropped DLL 1 IoCs

pid	Process
892	PO N4pdf.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

resource	yara_rule
behavioral1/memory/892-7-0x0000000000610000-0x0000000000631000-memory.dmp	agile_net

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\ak = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\ak.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1724 set thread context of 1824	1724	ak.exe	33

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
892	PO N4pdf.exe
892	PO N4pdf.exe
892	PO N4pdf.exe
1724	ak.exe
1724	ak.exe
1824	ak.exe
1824	ak.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	892	PO N4pdf.exe
Token: SeDebugPrivilege	1724	ak.exe
Token: SeDebugPrivilege	1824	ak.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 892 wrote to memory of 848	892	PO N4pdf.exe	29
PID 892 wrote to memory of 848	892	PO N4pdf.exe	29
PID 892 wrote to memory of 848	892	PO N4pdf.exe	29
PID 892 wrote to memory of 848	892	PO N4pdf.exe	29
PID 848 wrote to memory of 676	848	cmd.exe	31
PID 848 wrote to memory of 676	848	cmd.exe	31
PID 848 wrote to memory of 676	848	cmd.exe	31
PID 848 wrote to memory of 676	848	cmd.exe	31
PID 892 wrote to memory of 1724	892	PO N4pdf.exe	32
PID 892 wrote to memory of 1724	892	PO N4pdf.exe	32
PID 892 wrote to memory of 1724	892	PO N4pdf.exe	32
PID 892 wrote to memory of 1724	892	PO N4pdf.exe	32
PID 1724 wrote to memory of 1824	1724	ak.exe	33
PID 1724 wrote to memory of 1824	1724	ak.exe	33
PID 1724 wrote to memory of 1824	1724	ak.exe	33
PID 1724 wrote to memory of 1824	1724	ak.exe	33
PID 1724 wrote to memory of 1824	1724	ak.exe	33
PID 1724 wrote to memory of 1824	1724	ak.exe	33
PID 1724 wrote to memory of 1824	1724	ak.exe	33
PID 1724 wrote to memory of 1824	1724	ak.exe	33
PID 1724 wrote to memory of 1824	1724	ak.exe	33

C:\Users\Admin\AppData\Local\Temp\PO N4pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PO N4pdf.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:892
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "ak" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\ak.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:848
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "ak" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\ak.exe"
    3⤵
    - Adds Run key to start application
    PID:676
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\ak.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\ak.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1724
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\ak.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\ak.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1824

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

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/892-2-0x0000000073D30000-0x000000007441E000-memory.dmp

Download

memory/892-10-0x00000000047B1000-0x00000000047B2000-memory.dmp

Download

memory/892-3-0x00000000009A0000-0x00000000009A1000-memory.dmp

Download

memory/892-7-0x0000000000610000-0x0000000000631000-memory.dmp

Download

memory/892-5-0x00000000047B0000-0x00000000047B1000-memory.dmp

Download

memory/1724-18-0x0000000000400000-0x0000000000401000-memory.dmp

Download

memory/1724-16-0x0000000000D60000-0x0000000000D61000-memory.dmp

Download

memory/1724-15-0x0000000073D30000-0x000000007441E000-memory.dmp

Download

memory/1724-21-0x0000000000401000-0x0000000000402000-memory.dmp

Download

memory/1724-22-0x0000000000BE0000-0x0000000000BEB000-memory.dmp

Download

memory/1724-23-0x0000000000BC0000-0x0000000000BC1000-memory.dmp

Download

memory/1824-24-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1824-27-0x0000000073D30000-0x000000007441E000-memory.dmp

Download

memory/1824-28-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1824-30-0x0000000004B90000-0x0000000004B91000-memory.dmp

Download