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
4028	epistemology.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
15	ip-api.com

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x000a000000023b32-8.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4028 set thread context of 1016	4028	epistemology.exe	84

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
1016	RegSvcs.exe
1016	RegSvcs.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
4028	epistemology.exe
4028	epistemology.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1016	RegSvcs.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2216	18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe
2216	18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe
4028	epistemology.exe
4028	epistemology.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
2216	18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe
2216	18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe
4028	epistemology.exe
4028	epistemology.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2216 wrote to memory of 4028	2216	18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe	83
PID 2216 wrote to memory of 4028	2216	18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe	83
PID 2216 wrote to memory of 4028	2216	18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe	83
PID 4028 wrote to memory of 1016	4028	epistemology.exe	84
PID 4028 wrote to memory of 1016	4028	epistemology.exe	84
PID 4028 wrote to memory of 1016	4028	epistemology.exe	84
PID 4028 wrote to memory of 1016	4028	epistemology.exe	84

C:\Users\Admin\AppData\Local\Temp\18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe
"C:\Users\Admin\AppData\Local\Temp\18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2216
- 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:4028
- - 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:1016

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

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Downloads

C:\Users\Admin\AppData\Local\chiffons\epistemology.exe

Filesize
966KB

MD5
28ea8e92608217ac405a71e3388eeee2

SHA1
be3864ac322abd6ffeeb7308011ac5b3f733e561

SHA256
18b7930562b9f73f383204f2a09e2a76ab3d772a0d3813ea42bbff257430b5ad

SHA512
86cfa75ec43a3bdb0960a2f53452a1ce41e93c1b598bdbc2239aae833bbab8d98cad6d707b684d27aea6a46906d46c016df79117300292ced99cf024e19bdab2

Download Submit
memory/1016-20-0x0000000004F30000-0x0000000004F96000-memory.dmp

Filesize
408KB

Download
memory/1016-17-0x0000000000740000-0x0000000000782000-memory.dmp

Filesize
264KB

Download
memory/1016-18-0x000000007460E000-0x000000007460F000-memory.dmp

Filesize
4KB

Download
memory/1016-19-0x00000000053B0000-0x0000000005954000-memory.dmp

Filesize
5.6MB

Download
memory/1016-21-0x0000000074600000-0x0000000074DB0000-memory.dmp

Filesize
7.7MB

Download
memory/1016-22-0x00000000061C0000-0x0000000006210000-memory.dmp

Filesize
320KB

Download
memory/1016-23-0x00000000062B0000-0x0000000006342000-memory.dmp

Filesize
584KB

Download
memory/1016-24-0x0000000006240000-0x000000000624A000-memory.dmp

Filesize
40KB

Download
memory/1016-25-0x000000007460E000-0x000000007460F000-memory.dmp

Filesize
4KB

Download
memory/1016-26-0x0000000074600000-0x0000000074DB0000-memory.dmp

Filesize
7.7MB

Download
memory/2216-5-0x00000000032C0000-0x00000000032C4000-memory.dmp

Filesize
16KB

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Analysis

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