agenttesla | 28ead7588848700eeb6c5ca4d1aa5f6f781b50128c8b7f660d4fb5f8d6c42dc1

General

Target

Halkbank_Ekstre_20230426_075819_154055.exe
Size

1.1MB
MD5

85dc33964b5b4df2be2527fceb845bdd
SHA1

57645b51f80af2436a094e58464cca9a50065a6b
SHA256

28ead7588848700eeb6c5ca4d1aa5f6f781b50128c8b7f660d4fb5f8d6c42dc1
SHA512

65ec2cfb5520e525011c504ff19c63ae53285bdfd574f0d556a1a67e240296b8a3dbbb2ea1e004ec8cf71247866ed71998ebee94766d6fb8f0462affc4053d22
SSDEEP

12288:MWkrvtW8G34/uK45+po2ctlUMpH7v6QnbC9GIWph/JxKBJjYXMXB9jZUYWHSuI9p:yu34/up+pJctuMpuQnbC9GRnx9c9A18

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://discord.com/api/webhooks/1180980368132813040/F2kog0SoqSzwLFrqkGYc1qWEL0L0-wOGxHPYQ2P_BUqwGK1UmdtLRpT5k4dyoY6aTmvE

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

Halkbank_Ekstre_20230426_075819_154055.exe

description	pid	process	target process
PID 2196 set thread context of 1408	2196	Halkbank_Ekstre_20230426_075819_154055.exe	Halkbank_Ekstre_20230426_075819_154055.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

540 1408 WerFault.exe Halkbank_Ekstre_20230426_075819_154055.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Halkbank_Ekstre_20230426_075819_154055.exe

pid process

1408 Halkbank_Ekstre_20230426_075819_154055.exe
1408 Halkbank_Ekstre_20230426_075819_154055.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Halkbank_Ekstre_20230426_075819_154055.exe

description pid process

Token: SeDebugPrivilege 1408 Halkbank_Ekstre_20230426_075819_154055.exe

pid	pid_target	process	target process
540	1408	WerFault.exe	Halkbank_Ekstre_20230426_075819_154055.exe

pid	process
1408	Halkbank_Ekstre_20230426_075819_154055.exe
1408	Halkbank_Ekstre_20230426_075819_154055.exe

description	pid	process
Token: SeDebugPrivilege	1408	Halkbank_Ekstre_20230426_075819_154055.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

Halkbank_Ekstre_20230426_075819_154055.exe

description	pid	process	target process
PID 2196 wrote to memory of 1408	2196	Halkbank_Ekstre_20230426_075819_154055.exe	Halkbank_Ekstre_20230426_075819_154055.exe
PID 2196 wrote to memory of 1408	2196	Halkbank_Ekstre_20230426_075819_154055.exe	Halkbank_Ekstre_20230426_075819_154055.exe
PID 2196 wrote to memory of 1408	2196	Halkbank_Ekstre_20230426_075819_154055.exe	Halkbank_Ekstre_20230426_075819_154055.exe
PID 2196 wrote to memory of 1408	2196	Halkbank_Ekstre_20230426_075819_154055.exe	Halkbank_Ekstre_20230426_075819_154055.exe
PID 2196 wrote to memory of 1408	2196	Halkbank_Ekstre_20230426_075819_154055.exe	Halkbank_Ekstre_20230426_075819_154055.exe
PID 2196 wrote to memory of 1408	2196	Halkbank_Ekstre_20230426_075819_154055.exe	Halkbank_Ekstre_20230426_075819_154055.exe
PID 2196 wrote to memory of 1408	2196	Halkbank_Ekstre_20230426_075819_154055.exe	Halkbank_Ekstre_20230426_075819_154055.exe
PID 2196 wrote to memory of 1408	2196	Halkbank_Ekstre_20230426_075819_154055.exe	Halkbank_Ekstre_20230426_075819_154055.exe

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 use of WriteProcessMemory
PID:2196

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:1408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1408 -s 1840
3⤵
- Program crash
PID:540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1408 -ip 1408
1⤵
PID:2328

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

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/1408-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1408-21-0x0000000074B40000-0x00000000752F0000-memory.dmp

Filesize
7.7MB

Download
memory/1408-20-0x0000000005FE0000-0x0000000006030000-memory.dmp

Filesize
320KB

Download
memory/1408-18-0x0000000005030000-0x0000000005040000-memory.dmp

Filesize
64KB

Download
memory/1408-19-0x0000000005340000-0x00000000053A6000-memory.dmp

Filesize
408KB

Download
memory/1408-16-0x0000000074B40000-0x00000000752F0000-memory.dmp

Filesize
7.7MB

Download
memory/2196-5-0x00000000058C0000-0x00000000058CA000-memory.dmp

Filesize
40KB

Download
memory/2196-6-0x0000000005EC0000-0x0000000005ED8000-memory.dmp

Filesize
96KB

Download
memory/2196-9-0x0000000007290000-0x000000000730C000-memory.dmp

Filesize
496KB

Download
memory/2196-10-0x0000000007050000-0x00000000070EC000-memory.dmp

Filesize
624KB

Download
memory/2196-11-0x0000000074B40000-0x00000000752F0000-memory.dmp

Filesize
7.7MB

Download
memory/2196-12-0x0000000005950000-0x0000000005960000-memory.dmp

Filesize
64KB

Download
memory/2196-7-0x0000000005F10000-0x0000000005F18000-memory.dmp

Filesize
32KB

Download
memory/2196-8-0x0000000006F40000-0x0000000006F4A000-memory.dmp

Filesize
40KB

Download
memory/2196-0-0x0000000000DB0000-0x0000000000ECA000-memory.dmp

Filesize
1.1MB

Download
memory/2196-17-0x0000000074B40000-0x00000000752F0000-memory.dmp

Filesize
7.7MB

Download
memory/2196-4-0x0000000005950000-0x0000000005960000-memory.dmp

Filesize
64KB

Download
memory/2196-3-0x0000000005970000-0x0000000005A02000-memory.dmp

Filesize
584KB

Download
memory/2196-2-0x0000000005F20000-0x00000000064C4000-memory.dmp

Filesize
5.6MB

Download
memory/2196-1-0x0000000074B40000-0x00000000752F0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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