agenttesla | e618572ad0aa690e95be68f3d4c4ada7d0849685e8535307be1b68e886600b7b

General

Target

Shipping details_pdf.exe
Size

18KB
MD5

263e6b03c01850e6726666915881a526
SHA1

4cffc3766319b6a07b4274bf9e0b2d18a585653e
SHA256

e618572ad0aa690e95be68f3d4c4ada7d0849685e8535307be1b68e886600b7b
SHA512

650b01f9a5cc31cd0b45bf17ac5a3dc3921ccd3031fa6be2c37338f809e18381af71a3062d1b793fa1e8198d2c489fc5403bc4edaa3fdb853c49131be984ecf4
SSDEEP

384:3QcXmNrBb0lf1Smo6GydgSKDQbkoKDVbJdpGKDGPGAcrzBR:3QcXmZ0syq39EPGf

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5471298201:AAGFh758keN2eA73SQlIsmB91r4EW74GWCo/

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	Shipping details_pdf.exe

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
T1081
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
T1081
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
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Shipping details_pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Shipping details_pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Shipping details_pdf.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ysayc = "\"C:\\Users\\Admin\\AppData\\Roaming\\Skmutugi\\Ysayc.exe\""	Shipping details_pdf.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
36	api.ipify.org
37	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3976 set thread context of 4384	3976	Shipping details_pdf.exe	91

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 5 IoCs

pid	Process
712	powershell.exe
712	powershell.exe
4384	Shipping details_pdf.exe
4384	Shipping details_pdf.exe
4384	Shipping details_pdf.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3976	Shipping details_pdf.exe
Token: SeDebugPrivilege	712	powershell.exe
Token: SeDebugPrivilege	4384	Shipping details_pdf.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4384	Shipping details_pdf.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3976 wrote to memory of 712	3976	Shipping details_pdf.exe	82
PID 3976 wrote to memory of 712	3976	Shipping details_pdf.exe	82
PID 3976 wrote to memory of 712	3976	Shipping details_pdf.exe	82
PID 3976 wrote to memory of 4384	3976	Shipping details_pdf.exe	91
PID 3976 wrote to memory of 4384	3976	Shipping details_pdf.exe	91
PID 3976 wrote to memory of 4384	3976	Shipping details_pdf.exe	91
PID 3976 wrote to memory of 4384	3976	Shipping details_pdf.exe	91
PID 3976 wrote to memory of 4384	3976	Shipping details_pdf.exe	91
PID 3976 wrote to memory of 4384	3976	Shipping details_pdf.exe	91
PID 3976 wrote to memory of 4384	3976	Shipping details_pdf.exe	91
PID 3976 wrote to memory of 4384	3976	Shipping details_pdf.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Shipping details_pdf.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Shipping details_pdf.exe

C:\Users\Admin\AppData\Local\Temp\Shipping details_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Shipping details_pdf.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3976
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANQAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:712
- C:\Users\Admin\AppData\Local\Temp\Shipping details_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Shipping details_pdf.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:4384

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

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
1KB

MD5
77cecb6156eb699c2b46c9097960e2f7

SHA1
851bf917a8d5226704310f8552d7d38bb76bcb22

SHA256
fb23c1d9cfae1f67dfb9ce877a8203ec6fcbe1edbcb6ac96e064b5f6f3b4f971

SHA512
538f39e80eb8aa558f96a11389c9c671065e01dc1cec21b5f5f81c6e693230acac2162aa42b71e9ae64e920757226a45d7be805b28375737c4de4aab4febeb3a

Download Submit
memory/712-136-0x0000000005020000-0x0000000005648000-memory.dmp

Filesize
6.2MB

Download
memory/712-141-0x0000000006230000-0x000000000624A000-memory.dmp

Filesize
104KB

Download
memory/712-135-0x0000000002770000-0x00000000027A6000-memory.dmp

Filesize
216KB

Download
memory/712-137-0x00000000056C0000-0x0000000005726000-memory.dmp

Filesize
408KB

Download
memory/712-138-0x0000000005730000-0x0000000005796000-memory.dmp

Filesize
408KB

Download
memory/712-139-0x0000000005D30000-0x0000000005D4E000-memory.dmp

Filesize
120KB

Download
memory/712-140-0x0000000007580000-0x0000000007BFA000-memory.dmp

Filesize
6.5MB

Download
memory/3976-132-0x00000000009B0000-0x00000000009BA000-memory.dmp

Filesize
40KB

Download
memory/3976-133-0x00000000060E0000-0x0000000006102000-memory.dmp

Filesize
136KB

Download
memory/4384-143-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4384-145-0x00000000052D0000-0x0000000005874000-memory.dmp

Filesize
5.6MB

Download
memory/4384-146-0x0000000004DC0000-0x0000000004E5C000-memory.dmp

Filesize
624KB

Download
memory/4384-147-0x0000000006480000-0x00000000064D0000-memory.dmp

Filesize
320KB

Download
memory/4384-148-0x00000000067A0000-0x0000000006832000-memory.dmp

Filesize
584KB

Download
memory/4384-149-0x0000000006AC0000-0x0000000006ACA000-memory.dmp

Filesize
40KB

Download

Analysis

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