agenttesla | 3e66140948ea8949f896178b45dafab61d844a1e90c0788871573a400cea7674

General

Target

SOA.exe
Size

668KB
MD5

2da2b1da759f9ee6054aa234b85ff401
SHA1

2ee230cfce946bd6044904a52212c4339485039a
SHA256

ab0d0bb327fcb4f057c64df4d03ac22f606461f5ab86cf0543ace64c30110c35
SHA512

fb4eeeb434fbff878f393c21e7bab02d5114bf4956094b045fa631fd03c0289c02da4cf0539ad34f279fc777e55a8eec31ccf83b7feb8597a93b0d09ba8db747
SSDEEP

12288:NFaIBJWJ8R9QDr9kwZG3BEZSBmzgFjTPwJH/Cl1HVYUevB6x:NTBSHH9tG36oygF/wJHKl1HVBe5

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.starmech.net
Port:
587
Username:
[email protected]
Password:
nics123
Email To:
[email protected]

Signatures

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

Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs

resource	yara_rule
behavioral2/memory/860-11-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs

resource	yara_rule
behavioral2/memory/860-11-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables packed with SmartAssembly 1 IoCs

resource	yara_rule
behavioral2/memory/1812-7-0x0000000006110000-0x000000000612E000-memory.dmp	INDICATOR_EXE_Packed_SmartAssembly

Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs

resource	yara_rule
behavioral2/memory/860-11-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral2/memory/860-11-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral2/memory/860-11-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral2/memory/860-11-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\BjTxJte = "C:\\Users\\Admin\\AppData\\Roaming\\BjTxJte\\BjTxJte.exe"	SOA.exe

Looks up external IP address via web service 2 IoCs

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

flow	ioc
22	api.ipify.org
23	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1812 set thread context of 860	1812	SOA.exe	93

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1812	SOA.exe
1812	SOA.exe
860	SOA.exe
860	SOA.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1812	SOA.exe
Token: SeDebugPrivilege	860	SOA.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
860	SOA.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1812 wrote to memory of 860	1812	SOA.exe	93
PID 1812 wrote to memory of 860	1812	SOA.exe	93
PID 1812 wrote to memory of 860	1812	SOA.exe	93
PID 1812 wrote to memory of 860	1812	SOA.exe	93
PID 1812 wrote to memory of 860	1812	SOA.exe	93
PID 1812 wrote to memory of 860	1812	SOA.exe	93
PID 1812 wrote to memory of 860	1812	SOA.exe	93
PID 1812 wrote to memory of 860	1812	SOA.exe	93

C:\Users\Admin\AppData\Local\Temp\SOA.exe
"C:\Users\Admin\AppData\Local\Temp\SOA.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1812
- C:\Users\Admin\AppData\Local\Temp\SOA.exe
  "C:\Users\Admin\AppData\Local\Temp\SOA.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/860-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/860-20-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/860-19-0x00000000068F0000-0x0000000006940000-memory.dmp

Filesize
320KB

Download
memory/860-17-0x0000000005250000-0x00000000052B6000-memory.dmp

Filesize
408KB

Download
memory/860-16-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/860-15-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/1812-4-0x0000000004E80000-0x0000000004E8A000-memory.dmp

Filesize
40KB

Download
memory/1812-8-0x0000000006140000-0x0000000006150000-memory.dmp

Filesize
64KB

Download
memory/1812-9-0x0000000006280000-0x0000000006296000-memory.dmp

Filesize
88KB

Download
memory/1812-10-0x0000000007D40000-0x0000000007DC4000-memory.dmp

Filesize
528KB

Download
memory/1812-7-0x0000000006110000-0x000000000612E000-memory.dmp

Filesize
120KB

Download
memory/1812-6-0x0000000004F30000-0x0000000004FCC000-memory.dmp

Filesize
624KB

Download
memory/1812-14-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/1812-5-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/1812-0-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

Filesize
4KB

Download
memory/1812-3-0x0000000004CC0000-0x0000000004D52000-memory.dmp

Filesize
584KB

Download
memory/1812-2-0x0000000005170000-0x0000000005714000-memory.dmp

Filesize
5.6MB

Download
memory/1812-1-0x0000000000240000-0x00000000002EC000-memory.dmp

Filesize
688KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads