agenttesla | 0c9a45e4ecfa393b10506740db540b0687e62cec15df3937e1dd0dfd2bb0b2eb

General

Target

Shipment Document BL,INV and packing list.jpg.exe
Size

1.4MB
MD5

90f0bfbc6e2c24e61844856d16501a62
SHA1

dbcd2c75ab8c79f016670042df9183194785e0f9
SHA256

d82ddcb3ef97d2cca2321a4e1d89add909d9aaeaf2166b28cc8f64f3603b93a4
SHA512

75537e91db75c9c6ddd0fa1d9b8a63589a8bb99e8f942cb1241e91f8642098b875e8f15a14fc17a61a4a3eba5c641f36a394163297fae1a7f07f091620a28a42
SSDEEP

12288:esmyfFaEXq1eKE8wbji5ymzB2L6nWZQzjFeM6DJOjB9sTTHyvJ1dFg:pja9zB2L6nYQb6VObnr

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5343531330:AAGJBRXMXstUjUCkHWRQxeLoip9bwkKXmx8/

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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	Shipment Document BL,INV and packing list.jpg.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-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Shipment Document BL,INV and packing list.jpg.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Shipment Document BL,INV and packing list.jpg.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Shipment Document BL,INV and packing list.jpg.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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\hussan = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\hussan.exe\""	Shipment Document BL,INV and packing list.jpg.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
39	api.ipify.org
40	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2128 set thread context of 4524	2128	Shipment Document BL,INV and packing list.jpg.exe	93

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
4236	powershell.exe
4236	powershell.exe
4524	Shipment Document BL,INV and packing list.jpg.exe
4524	Shipment Document BL,INV and packing list.jpg.exe
4524	Shipment Document BL,INV and packing list.jpg.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4236	powershell.exe
Token: SeDebugPrivilege	2128	Shipment Document BL,INV and packing list.jpg.exe
Token: SeDebugPrivilege	4524	Shipment Document BL,INV and packing list.jpg.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 4236	2128	Shipment Document BL,INV and packing list.jpg.exe	84
PID 2128 wrote to memory of 4236	2128	Shipment Document BL,INV and packing list.jpg.exe	84
PID 2128 wrote to memory of 4236	2128	Shipment Document BL,INV and packing list.jpg.exe	84
PID 2128 wrote to memory of 4524	2128	Shipment Document BL,INV and packing list.jpg.exe	93
PID 2128 wrote to memory of 4524	2128	Shipment Document BL,INV and packing list.jpg.exe	93
PID 2128 wrote to memory of 4524	2128	Shipment Document BL,INV and packing list.jpg.exe	93
PID 2128 wrote to memory of 4524	2128	Shipment Document BL,INV and packing list.jpg.exe	93
PID 2128 wrote to memory of 4524	2128	Shipment Document BL,INV and packing list.jpg.exe	93
PID 2128 wrote to memory of 4524	2128	Shipment Document BL,INV and packing list.jpg.exe	93
PID 2128 wrote to memory of 4524	2128	Shipment Document BL,INV and packing list.jpg.exe	93
PID 2128 wrote to memory of 4524	2128	Shipment Document BL,INV and packing list.jpg.exe	93

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Shipment Document BL,INV and packing list.jpg.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Shipment Document BL,INV and packing list.jpg.exe

C:\Users\Admin\AppData\Local\Temp\Shipment Document BL,INV and packing list.jpg.exe
"C:\Users\Admin\AppData\Local\Temp\Shipment Document BL,INV and packing list.jpg.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:2128
- 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:4236
- C:\Users\Admin\AppData\Local\Temp\Shipment Document BL,INV and packing list.jpg.exe
  "C:\Users\Admin\AppData\Local\Temp\Shipment Document BL,INV and packing list.jpg.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4524

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\Shipment Document BL,INV and packing list.jpg.exe.log

Filesize
1KB

MD5
7e88081fcf716d85992bb3af3d9b6454

SHA1
2153780fbc71061b0102a7a7b665349e1013e250

SHA256
5ffb4a3ea94a6a53c4f88e2191c6fec5fd8a7336e367aa113fe8c12631e0c4d2

SHA512
ec606e14367ae221c04f213a61a6f797034495121198e4788e3afa4aa8db67bf59c5c5210a56afae5557158e8923b013b371b84c7d64303618c5b4c57a2224f7

Download Submit
memory/2128-135-0x0000000000D90000-0x0000000000EFE000-memory.dmp

Filesize
1.4MB

Download
memory/2128-136-0x0000000005B50000-0x0000000005B72000-memory.dmp

Filesize
136KB

Download
memory/4236-139-0x0000000005490000-0x0000000005AB8000-memory.dmp

Filesize
6.2MB

Download
memory/4236-140-0x00000000053E0000-0x0000000005446000-memory.dmp

Filesize
408KB

Download
memory/4236-141-0x0000000005BC0000-0x0000000005C26000-memory.dmp

Filesize
408KB

Download
memory/4236-142-0x0000000006210000-0x000000000622E000-memory.dmp

Filesize
120KB

Download
memory/4236-143-0x0000000007870000-0x0000000007EEA000-memory.dmp

Filesize
6.5MB

Download
memory/4236-144-0x0000000006700000-0x000000000671A000-memory.dmp

Filesize
104KB

Download
memory/4236-138-0x00000000028D0000-0x0000000002906000-memory.dmp

Filesize
216KB

Download
memory/4524-146-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4524-148-0x0000000005400000-0x00000000059A4000-memory.dmp

Filesize
5.6MB

Download
memory/4524-149-0x0000000004F90000-0x000000000502C000-memory.dmp

Filesize
624KB

Download
memory/4524-150-0x00000000067E0000-0x0000000006830000-memory.dmp

Filesize
320KB

Download
memory/4524-151-0x0000000006980000-0x0000000006A12000-memory.dmp

Filesize
584KB

Download
memory/4524-152-0x0000000006BC0000-0x0000000006BCA000-memory.dmp

Filesize
40KB

Download

Analysis

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