agenttesla | 48363aae8da413d26123fd250d665bd9bbb2123a233725d15aab0e9b9424d560

General

Target

RFQSP301123PDF.exe
Size

814KB
MD5

2b30f0ccd92928eb9bf8e18a3e7146df
SHA1

5ff864bfe73d8d8ce236763de7b4ba77a967570b
SHA256

48363aae8da413d26123fd250d665bd9bbb2123a233725d15aab0e9b9424d560
SHA512

d98db889a57d9422ca846726728c33ad49539f79e1c0e45774d8eea84c616b5769ec1d236ca5a3e174a2f5dde40ee6c24d568c4c5d011f4fb17375387c6c5782
SSDEEP

12288:vW0tW8G34/uK45+po2YnBlBfdA9sCOGMGb6ikxAfzIwJ+FupSh5qA1AT2z3/:s34/up+pJ8lBwsCOGF6i7JdpSzqcz

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://discord.com/api/webhooks/1179499222463168573/PVUpZ1J1JtDuKSWVcXWilMvIlKb2Qchu7QhEEb_1sKVtTXLAEfM5aRMADIF1EWL0ZjkF

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
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

8 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

RFQSP301123PDF.exe

description pid process target process

PID 4840 set thread context of 1344 4840 RFQSP301123PDF.exe RFQSP301123PDF.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4688 1344 WerFault.exe RFQSP301123PDF.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

RFQSP301123PDF.exeRFQSP301123PDF.exe

pid process

4840 RFQSP301123PDF.exe
4840 RFQSP301123PDF.exe
1344 RFQSP301123PDF.exe
1344 RFQSP301123PDF.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RFQSP301123PDF.exeRFQSP301123PDF.exe

description pid process

Token: SeDebugPrivilege 4840 RFQSP301123PDF.exe
Token: SeDebugPrivilege 1344 RFQSP301123PDF.exe

flow	ioc
8	api.ipify.org

description	pid	process	target process
PID 4840 set thread context of 1344	4840	RFQSP301123PDF.exe	RFQSP301123PDF.exe

pid	pid_target	process	target process
4688	1344	WerFault.exe	RFQSP301123PDF.exe

pid	process
4840	RFQSP301123PDF.exe
4840	RFQSP301123PDF.exe
1344	RFQSP301123PDF.exe
1344	RFQSP301123PDF.exe

description	pid	process
Token: SeDebugPrivilege	4840	RFQSP301123PDF.exe
Token: SeDebugPrivilege	1344	RFQSP301123PDF.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

RFQSP301123PDF.exe

description	pid	process	target process
PID 4840 wrote to memory of 1344	4840	RFQSP301123PDF.exe	RFQSP301123PDF.exe
PID 4840 wrote to memory of 1344	4840	RFQSP301123PDF.exe	RFQSP301123PDF.exe
PID 4840 wrote to memory of 1344	4840	RFQSP301123PDF.exe	RFQSP301123PDF.exe
PID 4840 wrote to memory of 1344	4840	RFQSP301123PDF.exe	RFQSP301123PDF.exe
PID 4840 wrote to memory of 1344	4840	RFQSP301123PDF.exe	RFQSP301123PDF.exe
PID 4840 wrote to memory of 1344	4840	RFQSP301123PDF.exe	RFQSP301123PDF.exe
PID 4840 wrote to memory of 1344	4840	RFQSP301123PDF.exe	RFQSP301123PDF.exe
PID 4840 wrote to memory of 1344	4840	RFQSP301123PDF.exe	RFQSP301123PDF.exe

C:\Users\Admin\AppData\Local\Temp\RFQSP301123PDF.exe
"C:\Users\Admin\AppData\Local\Temp\RFQSP301123PDF.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4840

C:\Users\Admin\AppData\Local\Temp\RFQSP301123PDF.exe
"C:\Users\Admin\AppData\Local\Temp\RFQSP301123PDF.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1344 -s 1880
3⤵
- Program crash
PID:4688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1344 -ip 1344
1⤵
PID:3732

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\RFQSP301123PDF.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/1344-17-0x0000000005970000-0x00000000059D6000-memory.dmp

Filesize
408KB

Download
memory/1344-19-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/1344-18-0x0000000006F00000-0x0000000006F50000-memory.dmp

Filesize
320KB

Download
memory/1344-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1344-14-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/1344-16-0x00000000056A0000-0x00000000056B0000-memory.dmp

Filesize
64KB

Download
memory/4840-7-0x0000000005F20000-0x0000000005F28000-memory.dmp

Filesize
32KB

Download
memory/4840-1-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/4840-10-0x0000000006040000-0x00000000060DC000-memory.dmp

Filesize
624KB

Download
memory/4840-8-0x0000000005F30000-0x0000000005F3A000-memory.dmp

Filesize
40KB

Download
memory/4840-6-0x00000000063E0000-0x00000000063F8000-memory.dmp

Filesize
96KB

Download
memory/4840-15-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/4840-5-0x0000000004E50000-0x0000000004E5A000-memory.dmp

Filesize
40KB

Download
memory/4840-4-0x0000000004FB0000-0x0000000004FC0000-memory.dmp

Filesize
64KB

Download
memory/4840-0-0x00000000002F0000-0x00000000003C2000-memory.dmp

Filesize
840KB

Download
memory/4840-9-0x0000000006410000-0x000000000648C000-memory.dmp

Filesize
496KB

Download
memory/4840-2-0x0000000005450000-0x00000000059F4000-memory.dmp

Filesize
5.6MB

Download
memory/4840-3-0x0000000004D90000-0x0000000004E22000-memory.dmp

Filesize
584KB

Download

Analysis

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