agenttesla | 4684b8747bbfba6860cf67f473b418cc2b149aef01af36cb468d5cc308b689b1

General

Target

Halkbank_Ekstre_20230426_075819_154055.exe
Size

972KB
MD5

bc0e10ca4723910e4873b2bf1d3b5568
SHA1

be377f761ccd1b2b988460446565e583c4ab904d
SHA256

4684b8747bbfba6860cf67f473b418cc2b149aef01af36cb468d5cc308b689b1
SHA512

bdd92f708f8d50fb19020ca7944128fdc9ba7e06d17f9d0af506bb667b94f3681ded8bc8c4ef3e29ebb08dd07d056ca9f4793f2fa7d854c6b345803f89a3ad03
SSDEEP

12288:9gR/mZRM+kmaq0E4LqGSLo3xhlk27Hq5GGtPC+ZU9f5mtkm0fiE:9gkZR5kJEoqahh2cHQGGtP3u9Uj0fiE

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://discord.com/api/webhooks/1164074830275026954/1zinmGxrS_UVgl9V_DEKVgNcoyDdkCmkWgTvporQScIEsCWaH7v_TeOPPgJvBIMuWtmJ

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4836 set thread context of 4628	4836	Halkbank_Ekstre_20230426_075819_154055.exe	94

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4836	Halkbank_Ekstre_20230426_075819_154055.exe
4836	Halkbank_Ekstre_20230426_075819_154055.exe
4628	Halkbank_Ekstre_20230426_075819_154055.exe
4628	Halkbank_Ekstre_20230426_075819_154055.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4836	Halkbank_Ekstre_20230426_075819_154055.exe
Token: SeDebugPrivilege	4628	Halkbank_Ekstre_20230426_075819_154055.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4836 wrote to memory of 2788	4836	Halkbank_Ekstre_20230426_075819_154055.exe	93
PID 4836 wrote to memory of 2788	4836	Halkbank_Ekstre_20230426_075819_154055.exe	93
PID 4836 wrote to memory of 2788	4836	Halkbank_Ekstre_20230426_075819_154055.exe	93
PID 4836 wrote to memory of 4628	4836	Halkbank_Ekstre_20230426_075819_154055.exe	94
PID 4836 wrote to memory of 4628	4836	Halkbank_Ekstre_20230426_075819_154055.exe	94
PID 4836 wrote to memory of 4628	4836	Halkbank_Ekstre_20230426_075819_154055.exe	94
PID 4836 wrote to memory of 4628	4836	Halkbank_Ekstre_20230426_075819_154055.exe	94
PID 4836 wrote to memory of 4628	4836	Halkbank_Ekstre_20230426_075819_154055.exe	94
PID 4836 wrote to memory of 4628	4836	Halkbank_Ekstre_20230426_075819_154055.exe	94
PID 4836 wrote to memory of 4628	4836	Halkbank_Ekstre_20230426_075819_154055.exe	94
PID 4836 wrote to memory of 4628	4836	Halkbank_Ekstre_20230426_075819_154055.exe	94

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230426_075819_154055.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230426_075819_154055.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4836
- C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230426_075819_154055.exe
  "C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230426_075819_154055.exe"
  2⤵
  PID:2788
- C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230426_075819_154055.exe
  "C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230426_075819_154055.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Halkbank_Ekstre_20230426_075819_154055.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/4628-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4628-22-0x0000000004F30000-0x0000000004F40000-memory.dmp

Filesize
64KB

Download
memory/4628-21-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/4628-20-0x0000000005C80000-0x0000000005CD0000-memory.dmp

Filesize
320KB

Download
memory/4628-19-0x0000000005040000-0x00000000050A6000-memory.dmp

Filesize
408KB

Download
memory/4628-18-0x0000000004F30000-0x0000000004F40000-memory.dmp

Filesize
64KB

Download
memory/4628-17-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/4836-5-0x0000000005320000-0x000000000532A000-memory.dmp

Filesize
40KB

Download
memory/4836-6-0x0000000007A10000-0x0000000007A2C000-memory.dmp

Filesize
112KB

Download
memory/4836-10-0x00000000066A0000-0x00000000066B0000-memory.dmp

Filesize
64KB

Download
memory/4836-11-0x000000000D1A0000-0x000000000D21C000-memory.dmp

Filesize
496KB

Download
memory/4836-12-0x0000000010980000-0x0000000010A1C000-memory.dmp

Filesize
624KB

Download
memory/4836-8-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/4836-7-0x000000000A090000-0x000000000A09C000-memory.dmp

Filesize
48KB

Download
memory/4836-9-0x00000000053F0000-0x0000000005400000-memory.dmp

Filesize
64KB

Download
memory/4836-16-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/4836-0-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/4836-4-0x00000000053F0000-0x0000000005400000-memory.dmp

Filesize
64KB

Download
memory/4836-3-0x0000000005170000-0x0000000005202000-memory.dmp

Filesize
584KB

Download
memory/4836-2-0x0000000005670000-0x0000000005C14000-memory.dmp

Filesize
5.6MB

Download
memory/4836-1-0x0000000000690000-0x0000000000786000-memory.dmp

Filesize
984KB

Download

Analysis

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