agenttesla | 084f55dc8a85aa13027f9275f908f399f197c6570018e301eed3072fad966bb0

Analysis

max time kernel
58s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
06-09-2024 17:58

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General

Target

KrokmouLoader.exe
Size

13.1MB
MD5

8b2d7ca2a01a19f936e317066ae265c9
SHA1

c4975ad6c47aad09956513a5c8d0bc2fe071ab4e
SHA256

084f55dc8a85aa13027f9275f908f399f197c6570018e301eed3072fad966bb0
SHA512

a8c4280d17b81f938a0a36060cfa52bfe8672ab512656d7424d370e13e8d30e1170ac9ca1067823c159042a13c8a128cc5de3a58be4daea1180bc789dd5808ae
SSDEEP

393216:dUWz9Iz3I9sGLyR5No1JOs7yJZ0jJ7ksxGIEAROQ7g0cqm:G4ZmnmN7hjOIdw7f

Score

10^/10

agenttesla discovery keylogger 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 payload 1 IoCs

resource	yara_rule
behavioral2/memory/3440-29-0x0000000005DE0000-0x0000000005FF4000-memory.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

pid	Process
2888	NoHitDelay.exe
3440	index.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 1 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	index.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemVersion	index.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	index.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	index.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3440	index.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3440	index.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4848 wrote to memory of 2888	4848	KrokmouLoader.exe	78
PID 4848 wrote to memory of 2888	4848	KrokmouLoader.exe	78
PID 4848 wrote to memory of 3440	4848	KrokmouLoader.exe	82
PID 4848 wrote to memory of 3440	4848	KrokmouLoader.exe	82
PID 4848 wrote to memory of 3440	4848	KrokmouLoader.exe	82

C:\Users\Admin\AppData\Local\Temp\KrokmouLoader.exe
"C:\Users\Admin\AppData\Local\Temp\KrokmouLoader.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4848
- C:\Users\Admin\AppData\Local\Temp\NoHitDelay.exe
  "C:\Users\Admin\AppData\Local\Temp\NoHitDelay.exe"
  2⤵
  - Executes dropped EXE
  PID:2888
- C:\Users\Admin\AppData\Local\Temp\index.exe
  "C:\Users\Admin\AppData\Local\Temp\index.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3440

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\NoHitDelay.exe

Filesize
33.1MB

MD5
01db2bc0b1d5fa2ed8b160fb540af06e

SHA1
753f668b3b86a8783a042f7ce447d33c3eb4131b

SHA256
2722660a1b453f512c6e70f052d20f71b9a568be5c8a71c756af4d4c95c31c14

SHA512
e52ac38f75a69ba5725a79c93fb5a3e95c9162cc5dd441b6d9233c4de8605e37aab2fb93329be1a132565173526dd4704fcca24a31e73a9b1248b034ad15c9fc

Download Submit
C:\Users\Admin\AppData\Local\Temp\index.exe

Filesize
985KB

MD5
073334807ce91c5375594c3faca8ea40

SHA1
95c0174e877e8a239415ef257d5efa36554c1b69

SHA256
f6a99ac1862054da3d25f1fed47cf7d56feb056a2ed7f9885fbf492007c8cdfa

SHA512
18f4c8e4838cfa5dbfae467d4511ad298dcab48baa3efef8f6f10f4d01a65581cb7cd3870f5481d8ff82fb038bf7e1c9f26dc070fed7c310ff1d5cd292935e15

Download Submit
memory/3440-25-0x0000000000EC0000-0x0000000000FBC000-memory.dmp

Filesize
1008KB

Download
memory/3440-26-0x0000000006090000-0x0000000006636000-memory.dmp

Filesize
5.6MB

Download
memory/3440-27-0x0000000005AE0000-0x0000000005B72000-memory.dmp

Filesize
584KB

Download
memory/3440-28-0x0000000005A80000-0x0000000005A8A000-memory.dmp

Filesize
40KB

Download
memory/3440-29-0x0000000005DE0000-0x0000000005FF4000-memory.dmp

Filesize
2.1MB

Download
memory/3440-30-0x00000000090B0000-0x00000000090C2000-memory.dmp

Filesize
72KB

Download