agenttesla | 42abd533dfabb05a5bcda2475fd51b401612df4b2627eb8fc6b883deb5650a74

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12-09-2024 21:58

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General

Target

42abd533dfabb05a5bcda2475fd51b401612df4b2627eb8fc6b883deb5650a74.exe
Size

35KB
MD5

46eacc0b30ac3ef2dcf615f803f04076
SHA1

7bf43da062575868f2eb77ca8e3a632ae6ad51b7
SHA256

42abd533dfabb05a5bcda2475fd51b401612df4b2627eb8fc6b883deb5650a74
SHA512

e610ddc4191499d31f2f0b48afe2bdfc44b6b979f9a915323ade25fb79cb00555c1e89e6e3b0abebd96904a9170ff845b3377c0a305cfaccd0ab49f73b0e0fc6
SSDEEP

384:XZirz04kYcm5oRVPUn30CDG1iZMJSalHXeqZhsWIgDWsjxZUtO4f54A:Mi+5uVPUn30gGEZQH5SAXJ4f54A

Score

10^/10

agenttesla discovery keylogger persistence spyware stealer trojan upx

Malware Config

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	42abd533dfabb05a5bcda2475fd51b401612df4b2627eb8fc6b883deb5650a74.exe

Executes dropped EXE 1 IoCs

pid	Process
1988	system.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/640-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023487-7.dat	upx
behavioral2/memory/640-14-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1988-17-0x0000000000400000-0x000000000040B000-memory.dmp	upx

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MyApp = "C:\\WINDOWS\\system.exe"	42abd533dfabb05a5bcda2475fd51b401612df4b2627eb8fc6b883deb5650a74.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\WINDOWS\system.exe	42abd533dfabb05a5bcda2475fd51b401612df4b2627eb8fc6b883deb5650a74.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	42abd533dfabb05a5bcda2475fd51b401612df4b2627eb8fc6b883deb5650a74.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	system.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
640	42abd533dfabb05a5bcda2475fd51b401612df4b2627eb8fc6b883deb5650a74.exe
1988	system.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 640 wrote to memory of 1988	640	42abd533dfabb05a5bcda2475fd51b401612df4b2627eb8fc6b883deb5650a74.exe	86
PID 640 wrote to memory of 1988	640	42abd533dfabb05a5bcda2475fd51b401612df4b2627eb8fc6b883deb5650a74.exe	86
PID 640 wrote to memory of 1988	640	42abd533dfabb05a5bcda2475fd51b401612df4b2627eb8fc6b883deb5650a74.exe	86

C:\Users\Admin\AppData\Local\Temp\42abd533dfabb05a5bcda2475fd51b401612df4b2627eb8fc6b883deb5650a74.exe
"C:\Users\Admin\AppData\Local\Temp\42abd533dfabb05a5bcda2475fd51b401612df4b2627eb8fc6b883deb5650a74.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:640
- C:\WINDOWS\system.exe
  "C:\WINDOWS\system.exe" 0
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1988

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\system.exe

Filesize
35KB

MD5
61984baa75162b570f7f6ac30f199df8

SHA1
b81afac0cd91863c240222d6846eb44832b0059b

SHA256
3042e97c30bc8a7b5a54c3418e89e6fc150c746843031bd59080eac7485f809f

SHA512
20c1f6717c03b4bf61491793733c037963571031faca50e1d263754a130d4c3a35a658d209f3c045f4fd33266572be13aca4ea9a90eaa006e5bffc325cbe3461

Download Submit
memory/640-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/640-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1988-17-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads