agenttesla | 1ebcadef0f2790a5c28cc8d6100007eb6a82a0cf7fc582e7595fa9a3407d3049

Analysis

max time kernel
119s
max time network
127s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 17:36

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General

Target

$PLUGINSDIR/wfonpw4.dll
Size

5KB
MD5

2352a10c7c964ab3ab072f17a78cb77f
SHA1

a41c5d247420909bb3a3565dd552990258904f02
SHA256

271f00c08e8dbf27f0b36e27df2aa07be3e4492940118ae3e43758a812d7e370
SHA512

14634bebdd077a674b02bb9548588868ca56145e497fea67be211bd2887bec65b02c75f7edafdbff0d976ff9a424f8acc1ba0ab4244a1b86ebeb640ceb8c41d4
SSDEEP

48:aiGzDn1ASkT3jNDZbitP8Xr0EVg56F22/vtq1nh/SS72+DtMYquSzieLURuqS:/8n1ASknNDZ+tw0Eem2Rf2otsJzKx

Score

10^/10

agenttesla discovery keylogger persistence spyware stealer trojan

Malware Config

Signatures

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

AgentTesla payload 3 IoCs

resource	yara_rule
behavioral11/memory/1272-2-0x0000000000400000-0x000000000044B000-memory.dmp	family_agenttesla
behavioral11/memory/1272-6-0x0000000000400000-0x000000000044B000-memory.dmp	family_agenttesla
behavioral11/memory/1272-4-0x0000000000400000-0x000000000044B000-memory.dmp	family_agenttesla

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\riaagitukgs = "C:\\Users\\Admin\\AppData\\Roaming\\ptdrpxuyhk\\siusbbxdxbkm.exe"	rundll32.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1276 set thread context of 1272	1276	rundll32.exe	31

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dw20.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1272	rundll32.exe
1272	rundll32.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1276	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1272	rundll32.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 1276	2408	rundll32.exe	30
PID 2408 wrote to memory of 1276	2408	rundll32.exe	30
PID 2408 wrote to memory of 1276	2408	rundll32.exe	30
PID 2408 wrote to memory of 1276	2408	rundll32.exe	30
PID 2408 wrote to memory of 1276	2408	rundll32.exe	30
PID 2408 wrote to memory of 1276	2408	rundll32.exe	30
PID 2408 wrote to memory of 1276	2408	rundll32.exe	30
PID 1276 wrote to memory of 1272	1276	rundll32.exe	31
PID 1276 wrote to memory of 1272	1276	rundll32.exe	31
PID 1276 wrote to memory of 1272	1276	rundll32.exe	31
PID 1276 wrote to memory of 1272	1276	rundll32.exe	31
PID 1276 wrote to memory of 1272	1276	rundll32.exe	31
PID 1276 wrote to memory of 1272	1276	rundll32.exe	31
PID 1276 wrote to memory of 1272	1276	rundll32.exe	31
PID 1276 wrote to memory of 1272	1276	rundll32.exe	31
PID 1272 wrote to memory of 1912	1272	rundll32.exe	32
PID 1272 wrote to memory of 1912	1272	rundll32.exe	32
PID 1272 wrote to memory of 1912	1272	rundll32.exe	32
PID 1272 wrote to memory of 1912	1272	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\wfonpw4.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\wfonpw4.dll,#1
  2⤵
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1276
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\wfonpw4.dll,#1
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1272
  - - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
      dw20.exe -x -s 552
      4⤵
      System Location Discovery: System Language Discovery
      PID:1912

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1272-9-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/1272-2-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1272-6-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1272-4-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1272-7-0x0000000074A51000-0x0000000074A52000-memory.dmp

Filesize
4KB

Download
memory/1272-8-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/1272-10-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/1272-11-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/1272-12-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/1272-14-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/1272-15-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/1276-0-0x00000000001A0000-0x00000000001A3000-memory.dmp

Filesize
12KB

Download
memory/1912-13-0x0000000000580000-0x0000000000581000-memory.dmp

Filesize
4KB

Download