agenttesla | 5a18ef3e027b211901758fa2ffeaa63ae1ab87cdd85188660ab839771abb9ecb

General

Target

RE_BOEING3A78_NEW_ORDERS_E4G60K1G7_PDF.js
Size

466KB
MD5

83ef3f626544cef2f0962863ab109634
SHA1

48d5a062ea59ea06afc5334a43f2537390660538
SHA256

5a18ef3e027b211901758fa2ffeaa63ae1ab87cdd85188660ab839771abb9ecb
SHA512

d9f127a33cb2a42b610e3f0e7ad057233e9491a37fc8342f92b216e6f1a3a470e26487bab74cb40209d5c084429db78152ed7266aaa1b56633aa0c6239c591e9

Score

10^/10

agenttesla wshrat keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.zolvtek.com/
Port:
21
Username:
[email protected]
Password:
bird0006

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
WSHRAT
WSHRAT is a variant of Houdini worm and has vbs and js variants.
trojan wshrat

WSHRAT Payload 2 IoCs

resource	yara_rule
behavioral1/files/0x00040000000130c5-4.dat	family_wshrat
behavioral1/files/0x00040000000130c7-5.dat	family_wshrat

AgentTesla Payload 3 IoCs

resource	yara_rule
behavioral1/files/0x00050000000130ca-7.dat	family_agenttesla
behavioral1/files/0x00050000000130ca-8.dat	family_agenttesla
behavioral1/files/0x00050000000130ca-15.dat	family_agenttesla

Blocklisted process makes network request 7 IoCs

flow	pid	Process
5	1188	wscript.exe
7	1188	wscript.exe
10	1188	wscript.exe
11	1188	wscript.exe
13	1188	wscript.exe
14	1188	wscript.exe
15	1188	wscript.exe

Executes dropped EXE 1 IoCs

pid	Process
1828	234.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\RE_BOEING3A78_NEW_ORDERS_E4G60K1G7_PDF.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\RE_BOEING3A78_NEW_ORDERS_E4G60K1G7_PDF.js	wscript.exe

Loads dropped DLL 1 IoCs

pid	Process
884	dw20.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\RE_BOEING3A78_NEW_ORDERS_E4G60K1G7_PDF = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\RE_BOEING3A78_NEW_ORDERS_E4G60K1G7_PDF.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RE_BOEING3A78_NEW_ORDERS_E4G60K1G7_PDF = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\RE_BOEING3A78_NEW_ORDERS_E4G60K1G7_PDF.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\RE_BOEING3A78_NEW_ORDERS_E4G60K1G7_PDF = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\RE_BOEING3A78_NEW_ORDERS_E4G60K1G7_PDF.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RE_BOEING3A78_NEW_ORDERS_E4G60K1G7_PDF = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\RE_BOEING3A78_NEW_ORDERS_E4G60K1G7_PDF.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\software\microsoft\windows\currentversion\run	wscript.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
4	ip-api.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1828	234.exe
1828	234.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1828	234.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1676 wrote to memory of 1188	1676	wscript.exe	30
PID 1676 wrote to memory of 1188	1676	wscript.exe	30
PID 1676 wrote to memory of 1188	1676	wscript.exe	30
PID 1188 wrote to memory of 1828	1188	wscript.exe	31
PID 1188 wrote to memory of 1828	1188	wscript.exe	31
PID 1188 wrote to memory of 1828	1188	wscript.exe	31
PID 1188 wrote to memory of 1828	1188	wscript.exe	31
PID 1828 wrote to memory of 884	1828	234.exe	34
PID 1828 wrote to memory of 884	1828	234.exe	34
PID 1828 wrote to memory of 884	1828	234.exe	34
PID 1828 wrote to memory of 884	1828	234.exe	34

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\RE_BOEING3A78_NEW_ORDERS_E4G60K1G7_PDF.js
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1676
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\RE_BOEING3A78_NEW_ORDERS_E4G60K1G7_PDF.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:1188
- - C:\Users\Admin\AppData\Roaming\234.exe
    "C:\Users\Admin\AppData\Roaming\234.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1828
  - - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
      dw20.exe -x -s 516
      4⤵
      Loads dropped DLL
      PID:884

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/884-13-0x0000000001E60000-0x0000000001E71000-memory.dmp

Filesize
68KB

Download
memory/884-16-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/1392-10-0x000007FEF6780000-0x000007FEF69FA000-memory.dmp

Filesize
2.5MB

Download
memory/1676-3-0x0000000002700000-0x0000000002704000-memory.dmp

Filesize
16KB

Download
memory/1828-9-0x0000000075A41000-0x0000000075A43000-memory.dmp

Filesize
8KB

Download
memory/1828-11-0x00000000009C0000-0x00000000009C1000-memory.dmp

Filesize
4KB

Download

Analysis

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