agenttesla | 18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad

General

Target

18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe
Size

966KB
MD5

28ea8e92608217ac405a71e3388eeee2
SHA1

be3864ac322abd6ffeeb7308011ac5b3f733e561
SHA256

18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad
SHA512

86cfa75ec43a3bdb0960a2f53452a1ce41e93c1b598bdbc2239aae833bbab8d98cad6d707b684d27aea6a46906d46c016df79117300292ced99cf024e19bdab2
SSDEEP

24576:5fmMv6Ckr7Mny5QtMGjIch4Ks9T1+TKJy:53v+7/5QtMi4KwXk

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.antoniomayol.com:21
Port:
21
Username:
[email protected]
Password:
cMhKDQUk1{;%

Signatures

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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\epistemology.vbs	epistemology.exe

Executes dropped EXE 1 IoCs

pid	Process
2292	epistemology.exe

Loads dropped DLL 1 IoCs

pid	Process
2004	18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	ip-api.com

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x0008000000016d0e-7.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2292 set thread context of 2888	2292	epistemology.exe	31

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 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	18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	epistemology.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2888	RegSvcs.exe
2888	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2292	epistemology.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2888	RegSvcs.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2004	18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe
2004	18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe
2292	epistemology.exe
2292	epistemology.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
2004	18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe
2004	18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe
2292	epistemology.exe
2292	epistemology.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 2292	2004	18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe	30
PID 2004 wrote to memory of 2292	2004	18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe	30
PID 2004 wrote to memory of 2292	2004	18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe	30
PID 2004 wrote to memory of 2292	2004	18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe	30
PID 2292 wrote to memory of 2888	2292	epistemology.exe	31
PID 2292 wrote to memory of 2888	2292	epistemology.exe	31
PID 2292 wrote to memory of 2888	2292	epistemology.exe	31
PID 2292 wrote to memory of 2888	2292	epistemology.exe	31
PID 2292 wrote to memory of 2888	2292	epistemology.exe	31
PID 2292 wrote to memory of 2888	2292	epistemology.exe	31
PID 2292 wrote to memory of 2888	2292	epistemology.exe	31
PID 2292 wrote to memory of 2888	2292	epistemology.exe	31

C:\Users\Admin\AppData\Local\Temp\18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe
"C:\Users\Admin\AppData\Local\Temp\18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Users\Admin\AppData\Local\chiffons\epistemology.exe
  "C:\Users\Admin\AppData\Local\Temp\18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2292
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2888

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nonplacental

Filesize
239KB

MD5
792c91cca65ed7bc875cec68914c50e9

SHA1
2df5cc6c5f2728c352b35bc7b858329d53e1e190

SHA256
bc54b51e707388c35629a2ab58b06568ac0eb9c7c9f81e1cba6d6f2a1b3553a8

SHA512
88511fef10cd5baf0fc5a089c53cdaea3bbc0deab66d78ffb6e1a2a5b7dd3a1977ddc5d2d59f46005553e474219e947a0ea7cb31988b36b1b9f29009e51d268a

Download Submit
\Users\Admin\AppData\Local\chiffons\epistemology.exe

Filesize
966KB

MD5
28ea8e92608217ac405a71e3388eeee2

SHA1
be3864ac322abd6ffeeb7308011ac5b3f733e561

SHA256
18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad

SHA512
86cfa75ec43a3bdb0960a2f53452a1ce41e93c1b598bdbc2239aae833bbab8d98cad6d707b684d27aea6a46906d46c016df79117300292ced99cf024e19bdab2

Download Submit
memory/2004-5-0x00000000003E0000-0x00000000003E4000-memory.dmp

Filesize
16KB

Download
memory/2888-19-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2888-21-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2888-23-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2888-24-0x0000000073F5E000-0x0000000073F5F000-memory.dmp

Filesize
4KB

Download
memory/2888-25-0x0000000073F50000-0x000000007463E000-memory.dmp

Filesize
6.9MB

Download
memory/2888-26-0x0000000073F5E000-0x0000000073F5F000-memory.dmp

Filesize
4KB

Download
memory/2888-27-0x0000000073F50000-0x000000007463E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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