agenttesla | 3e00d864918670e82b26e4dd616644aa3c22ead3495ec6ca6e2588e6a855aad8

General

Target

Purchase Order_2241838_20221210_201349-pdf.exe
Size

23KB
MD5

e21cdaf4693263a36d6f3f6d7544bc19
SHA1

91d37dac1d4669e0fc704ddbef4ffae00534d826
SHA256

3e00d864918670e82b26e4dd616644aa3c22ead3495ec6ca6e2588e6a855aad8
SHA512

d636f89d776e57f5eb2905825cc182664c03402cdf864bc8d9573c8dfa981b2952f95777d704ce55caa152a7b10957b7fd38d3738531c87a48b859992cc20a5a
SSDEEP

384:xYglR6cNoHzVZJq/S8frSo62tCT+UuSvwiFawJQl:xX4HzIfrS8fiFaKQl

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://discord.com/api/webhooks/1050604372649857074/HCdXn7L3pXjiWpMvSwsznc6mxCQNPxPKiBRfn4IJaLSoWiI7oFa4ZtErxOdAdlW9nPsH

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

Processes:

Purchase Order_2241838_20221210_201349-pdf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	Purchase Order_2241838_20221210_201349-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

Processes:

Purchase Order_2241838_20221210_201349-pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order_2241838_20221210_201349-pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order_2241838_20221210_201349-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	Purchase Order_2241838_20221210_201349-pdf.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Purchase Order_2241838_20221210_201349-pdf.exePurchase Order_2241838_20221210_201349-pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ydgmbana = "\"C:\\Users\\Admin\\AppData\\Roaming\\Lmoisqen\\Ydgmbana.exe\""	Purchase Order_2241838_20221210_201349-pdf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Skype = "C:\\Users\\Admin\\AppData\\Roaming\\Skype\\Skype.exe"	Purchase Order_2241838_20221210_201349-pdf.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.

Processes:

flow ioc

50 api.ipify.org

flow	ioc
50	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

Purchase Order_2241838_20221210_201349-pdf.exe

description	pid	process	target process
PID 3036 set thread context of 3264	3036	Purchase Order_2241838_20221210_201349-pdf.exe	Purchase Order_2241838_20221210_201349-pdf.exe

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

Processes:

powershell.exePurchase Order_2241838_20221210_201349-pdf.exe

pid	process
1960	powershell.exe
1960	powershell.exe
3264	Purchase Order_2241838_20221210_201349-pdf.exe
3264	Purchase Order_2241838_20221210_201349-pdf.exe
3264	Purchase Order_2241838_20221210_201349-pdf.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Purchase Order_2241838_20221210_201349-pdf.exepowershell.exePurchase Order_2241838_20221210_201349-pdf.exe

description	pid	process
Token: SeDebugPrivilege	3036	Purchase Order_2241838_20221210_201349-pdf.exe
Token: SeDebugPrivilege	1960	powershell.exe
Token: SeDebugPrivilege	3264	Purchase Order_2241838_20221210_201349-pdf.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Purchase Order_2241838_20221210_201349-pdf.exe

description	pid	process	target process
PID 3036 wrote to memory of 1960	3036	Purchase Order_2241838_20221210_201349-pdf.exe	powershell.exe
PID 3036 wrote to memory of 1960	3036	Purchase Order_2241838_20221210_201349-pdf.exe	powershell.exe
PID 3036 wrote to memory of 1960	3036	Purchase Order_2241838_20221210_201349-pdf.exe	powershell.exe
PID 3036 wrote to memory of 3264	3036	Purchase Order_2241838_20221210_201349-pdf.exe	Purchase Order_2241838_20221210_201349-pdf.exe
PID 3036 wrote to memory of 3264	3036	Purchase Order_2241838_20221210_201349-pdf.exe	Purchase Order_2241838_20221210_201349-pdf.exe
PID 3036 wrote to memory of 3264	3036	Purchase Order_2241838_20221210_201349-pdf.exe	Purchase Order_2241838_20221210_201349-pdf.exe
PID 3036 wrote to memory of 3264	3036	Purchase Order_2241838_20221210_201349-pdf.exe	Purchase Order_2241838_20221210_201349-pdf.exe
PID 3036 wrote to memory of 3264	3036	Purchase Order_2241838_20221210_201349-pdf.exe	Purchase Order_2241838_20221210_201349-pdf.exe
PID 3036 wrote to memory of 3264	3036	Purchase Order_2241838_20221210_201349-pdf.exe	Purchase Order_2241838_20221210_201349-pdf.exe
PID 3036 wrote to memory of 3264	3036	Purchase Order_2241838_20221210_201349-pdf.exe	Purchase Order_2241838_20221210_201349-pdf.exe
PID 3036 wrote to memory of 3264	3036	Purchase Order_2241838_20221210_201349-pdf.exe	Purchase Order_2241838_20221210_201349-pdf.exe

outlook_office_path 1 IoCs

Processes:

Purchase Order_2241838_20221210_201349-pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order_2241838_20221210_201349-pdf.exe

outlook_win_path 1 IoCs

Processes:

Purchase Order_2241838_20221210_201349-pdf.exe

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	Purchase Order_2241838_20221210_201349-pdf.exe

C:\Users\Admin\AppData\Local\Temp\Purchase Order_2241838_20221210_201349-pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order_2241838_20221210_201349-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:3036
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1960
- C:\Users\Admin\AppData\Local\Temp\Purchase Order_2241838_20221210_201349-pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Purchase Order_2241838_20221210_201349-pdf.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3264

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Purchase Order_2241838_20221210_201349-pdf.exe.log

Filesize
1KB

MD5
4f3fab3e5f44399e7f4162fd367eca2d

SHA1
adada0591db5f53bcc0565942047156de3464e6e

SHA256
5db52f2a6a0fbfaa29e27418a1b72b660298dfa58a12ac0f12897a06e557caef

SHA512
d8c3fe3a91e572627e31a44d88a71fc3072786b074d04484ff6aacfeab43e0d29ec88bf6ad2af2a5f8e70f0c0eea95dcea59a8159adf4c642e5f8fd5fc632db7

Download Submit
memory/1960-144-0x0000000006640000-0x000000000665A000-memory.dmp

Filesize
104KB

Download
memory/1960-137-0x0000000000000000-mapping.dmp

Download
memory/1960-141-0x0000000005AB0000-0x0000000005B16000-memory.dmp

Filesize
408KB

Download
memory/1960-140-0x0000000005A40000-0x0000000005AA6000-memory.dmp

Filesize
408KB

Download
memory/1960-142-0x0000000006140000-0x000000000615E000-memory.dmp

Filesize
120KB

Download
memory/1960-138-0x0000000004B80000-0x0000000004BB6000-memory.dmp

Filesize
216KB

Download
memory/1960-139-0x0000000005260000-0x0000000005888000-memory.dmp

Filesize
6.2MB

Download
memory/1960-143-0x0000000007980000-0x0000000007FFA000-memory.dmp

Filesize
6.5MB

Download
memory/3036-135-0x0000000005A40000-0x0000000005A4A000-memory.dmp

Filesize
40KB

Download
memory/3036-134-0x00000000058B0000-0x0000000005942000-memory.dmp

Filesize
584KB

Download
memory/3036-136-0x0000000008F00000-0x0000000008F22000-memory.dmp

Filesize
136KB

Download
memory/3036-132-0x0000000000F00000-0x0000000000F0C000-memory.dmp

Filesize
48KB

Download
memory/3036-133-0x0000000005DC0000-0x0000000006364000-memory.dmp

Filesize
5.6MB

Download
memory/3264-145-0x0000000000000000-mapping.dmp

Download
memory/3264-146-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3264-148-0x00000000051C0000-0x000000000525C000-memory.dmp

Filesize
624KB

Download
memory/3264-149-0x0000000007080000-0x00000000070D0000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads