agenttesla | 3c0a5c75a24724f85305ffe4831cc0303f9eaa1e2b3a897a91cb808429b34845

General

Target

SÖZLEŞME-pdf.exe
Size

701KB
MD5

62078921f530e580c1df7e86bf9975a1
SHA1

6589ad060056166c90136ba0313c1e580e478fdd
SHA256

3c0a5c75a24724f85305ffe4831cc0303f9eaa1e2b3a897a91cb808429b34845
SHA512

b9b3aceba175deffdb04687d885f88de035cc76df590f621a12b55ec798eb218b2d66531d9055cad51dfb5f2e1b8a98c262e467d0716506b567d3691af817dd0
SSDEEP

12288:lwFGHET8v6M1Q0Lxa4cdpv0yLHYGBHj4LrMpKWlnZylgimtdYM3O0V7bb:l5HETcTQ6M4ct8w00ylgZtub0V7

Score

10^/10

agenttesla guloader downloader keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.vvspijkenisse.nl
Port:
21
Username:
[email protected]
Password:
playingboyz231

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Haglskadeforsikring\Miljankenvnet.ini	SÖZLEŞME-pdf.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2796	msbuild.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
800	powershell.exe
2796	msbuild.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 800 set thread context of 2796	800	powershell.exe	33

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\integraltegnets\substrate.Ski	SÖZLEŞME-pdf.exe
File created	C:\Program Files (x86)\cockling.lnk	SÖZLEŞME-pdf.exe
File opened for modification	C:\Program Files (x86)\cockling.lnk	SÖZLEŞME-pdf.exe
File opened for modification	C:\Program Files (x86)\Kldebonnets.kod	SÖZLEŞME-pdf.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\bagvognen.lnk	SÖZLEŞME-pdf.exe
File opened for modification	C:\Windows\Calottes.Doo	SÖZLEŞME-pdf.exe
File opened for modification	C:\Windows\bagvognen.lnk	SÖZLEŞME-pdf.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
800	powershell.exe
800	powershell.exe
800	powershell.exe
800	powershell.exe
800	powershell.exe
800	powershell.exe
800	powershell.exe
2796	msbuild.exe
2796	msbuild.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
800	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	800	powershell.exe
Token: SeDebugPrivilege	2796	msbuild.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 800	2000	SÖZLEŞME-pdf.exe	28
PID 2000 wrote to memory of 800	2000	SÖZLEŞME-pdf.exe	28
PID 2000 wrote to memory of 800	2000	SÖZLEŞME-pdf.exe	28
PID 2000 wrote to memory of 800	2000	SÖZLEŞME-pdf.exe	28
PID 800 wrote to memory of 2796	800	powershell.exe	33
PID 800 wrote to memory of 2796	800	powershell.exe	33
PID 800 wrote to memory of 2796	800	powershell.exe	33
PID 800 wrote to memory of 2796	800	powershell.exe	33
PID 800 wrote to memory of 2796	800	powershell.exe	33
PID 800 wrote to memory of 2796	800	powershell.exe	33

C:\Users\Admin\AppData\Local\Temp\SÖZLEŞME-pdf.exe
"C:\Users\Admin\AppData\Local\Temp\SÖZLEŞME-pdf.exe"
1⤵
- Drops file in System32 directory
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" -windowstyle hidden "$bungfu=Get-Content 'C:\Users\Admin\AppData\Roaming\gregerss\dagbger\Dispersionerne.Amb77';$Sjusserne=$bungfu.SubString(50752,3);.$Sjusserne($bungfu)"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:800
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"
    3⤵
    - Suspicious use of NtCreateThreadExHideFromDebugger
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2796

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Rkkens.ini

Filesize
32B

MD5
a8ca1db6ae34f5e5c152094f44f92476

SHA1
9fe0fd4e6907c4f9099d2533c3bade4ffa0968e7

SHA256
1f0dbc97d6570f2f5a1e18f82842c9a0007e568ca8fb768c123637ef5077aad3

SHA512
e48e987e1f8297b17f7fb5b8b34da6131156834310987600b20b0dcff4c43632ccb4b2305030a4a999f783176d480c8300e6aef92afbb2032379eca6dac88b5a

Download Submit
C:\Users\Admin\AppData\Roaming\gregerss\dagbger\Autumn.Fil

Filesize
293KB

MD5
07f672cc4e0e8d3856b4324b80b59275

SHA1
596ceb4b0a3be1029c2be0f633b2f5f4734c4fc0

SHA256
a32785d716991ef0b1ab3af1ba58a5d90fbc03a30431d0ff2d538d0bb2cfc5c3

SHA512
58a692f5347eada5fa9a97cc5f85b2a4c46419c14b8d0cb67c5d4a6a464b5f2b942ac1c6b10efb0d5a2b7c0f291d85dd8a4878c06fe7996ae6df829bd274354d

Download Submit
C:\Users\Admin\AppData\Roaming\gregerss\dagbger\Dispersionerne.Amb77

Filesize
49KB

MD5
6f471e56b57ed402dd3d0659e4c4489e

SHA1
e3f351b01dd96b408599c1165786635d2332012f

SHA256
7834c9ab2a3f5f0c1d945474a350d8cc1437502931ef6f115c3a77869ae3ba01

SHA512
06773bd5be240c213dc54dc1e4dc2a0f0da40335c15dd93639e8aa4da6a279fa321f395399bb115ed17c6585fc9e2bba3bfca2255bcb02c4f553f9a748ceb8d4

Download Submit
memory/800-153-0x0000000077B10000-0x0000000077CB9000-memory.dmp

Filesize
1.7MB

Download
memory/800-156-0x0000000006160000-0x0000000007108000-memory.dmp

Filesize
15.7MB

Download
memory/800-141-0x00000000743A0000-0x000000007494B000-memory.dmp

Filesize
5.7MB

Download
memory/800-142-0x00000000743A0000-0x000000007494B000-memory.dmp

Filesize
5.7MB

Download
memory/800-148-0x00000000026D0000-0x00000000026D4000-memory.dmp

Filesize
16KB

Download
memory/800-149-0x0000000006160000-0x0000000007108000-memory.dmp

Filesize
15.7MB

Download
memory/800-150-0x00000000743A0000-0x000000007494B000-memory.dmp

Filesize
5.7MB

Download
memory/800-151-0x0000000006160000-0x0000000007108000-memory.dmp

Filesize
15.7MB

Download
memory/800-152-0x0000000002680000-0x00000000026C0000-memory.dmp

Filesize
256KB

Download
memory/800-143-0x0000000002680000-0x00000000026C0000-memory.dmp

Filesize
256KB

Download
memory/800-155-0x0000000077D00000-0x0000000077DD6000-memory.dmp

Filesize
856KB

Download
memory/800-144-0x0000000002680000-0x00000000026C0000-memory.dmp

Filesize
256KB

Download
memory/800-161-0x0000000006160000-0x0000000007108000-memory.dmp

Filesize
15.7MB

Download
memory/2796-158-0x0000000077B10000-0x0000000077CB9000-memory.dmp

Filesize
1.7MB

Download
memory/2796-159-0x000000006FE90000-0x0000000070EF2000-memory.dmp

Filesize
16.4MB

Download
memory/2796-160-0x0000000000910000-0x00000000018B8000-memory.dmp

Filesize
15.7MB

Download
memory/2796-157-0x0000000000910000-0x00000000018B8000-memory.dmp

Filesize
15.7MB

Download
memory/2796-162-0x000000006F7A0000-0x000000006FE8E000-memory.dmp

Filesize
6.9MB

Download
memory/2796-163-0x0000000000910000-0x00000000018B8000-memory.dmp

Filesize
15.7MB

Download
memory/2796-164-0x000000006FE90000-0x000000006FED0000-memory.dmp

Filesize
256KB

Download
memory/2796-166-0x000000001FDD0000-0x000000001FE10000-memory.dmp

Filesize
256KB

Download
memory/2796-169-0x000000006F7A0000-0x000000006FE8E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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