agenttesla | 8bcf90e098c3d656623cfcef91ba7604b54c5681ea93e107c54c337724ce8beb

General

Target

KWIIR00322677.exe
Size

717KB
MD5

33d5fc877829686038e66c40586ad884
SHA1

ddd9de3480e308c09419414ff0a0c794b0e71a81
SHA256

8bcf90e098c3d656623cfcef91ba7604b54c5681ea93e107c54c337724ce8beb
SHA512

b43754f836a08c8c6d94670e57b57cefcbcaab1f9894333b857187086062ad9ae1a4b8eeb5926d6a3b59c707fe58fc366cb10b377cf7b01d6f2d84f9a4942e70
SSDEEP

12288:Yk/NhqNNWp1NMPsKq3uUzg89oZBJpGHa91Pj7JV2lQHuWSF3x5wKZkfJMEE4UiA8:L2YSNq3uUzDkpGq/4

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

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	KWIIR00322677.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	KWIIR00322677.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	KWIIR00322677.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	KWIIR00322677.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
34	api.ipify.org
33	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3060 set thread context of 4392	3060	KWIIR00322677.exe	89

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
212	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3060	KWIIR00322677.exe
4392	KWIIR00322677.exe
4392	KWIIR00322677.exe
4392	KWIIR00322677.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3060	KWIIR00322677.exe
Token: SeDebugPrivilege	4392	KWIIR00322677.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 212	3060	KWIIR00322677.exe	87
PID 3060 wrote to memory of 212	3060	KWIIR00322677.exe	87
PID 3060 wrote to memory of 212	3060	KWIIR00322677.exe	87
PID 3060 wrote to memory of 4392	3060	KWIIR00322677.exe	89
PID 3060 wrote to memory of 4392	3060	KWIIR00322677.exe	89
PID 3060 wrote to memory of 4392	3060	KWIIR00322677.exe	89
PID 3060 wrote to memory of 4392	3060	KWIIR00322677.exe	89
PID 3060 wrote to memory of 4392	3060	KWIIR00322677.exe	89
PID 3060 wrote to memory of 4392	3060	KWIIR00322677.exe	89
PID 3060 wrote to memory of 4392	3060	KWIIR00322677.exe	89
PID 3060 wrote to memory of 4392	3060	KWIIR00322677.exe	89

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	KWIIR00322677.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	KWIIR00322677.exe

C:\Users\Admin\AppData\Local\Temp\KWIIR00322677.exe
"C:\Users\Admin\AppData\Local\Temp\KWIIR00322677.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TdcVcSZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE081.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:212
- C:\Users\Admin\AppData\Local\Temp\KWIIR00322677.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4392

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

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\KWIIR00322677.exe.log

Filesize
1KB

MD5
84e77a587d94307c0ac1357eb4d3d46f

SHA1
83cc900f9401f43d181207d64c5adba7a85edc1e

SHA256
e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99

SHA512
aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE081.tmp

Filesize
1KB

MD5
cfbc04f797ce79d3774499f2b87a8472

SHA1
9b71415d75e1008542485b0f052f149d3b233e3f

SHA256
29fe71ee92b160618fbe0613e42e6f9dd3d03f56e88b17712f8a7b13ef9bf8f6

SHA512
c9842671bfe72d6b30005d5ec4252419a7ea16b1f0da770807532c680ae5290f4c4520ad02ae8ba1413d811bc420e19d350a4952d219ebaa0ad7b9cc8f64e3f6

Download Submit
memory/3060-132-0x0000000000790000-0x0000000000848000-memory.dmp

Filesize
736KB

Download
memory/3060-133-0x0000000005810000-0x0000000005DB4000-memory.dmp

Filesize
5.6MB

Download
memory/3060-134-0x0000000005260000-0x00000000052F2000-memory.dmp

Filesize
584KB

Download
memory/3060-135-0x0000000005300000-0x000000000539C000-memory.dmp

Filesize
624KB

Download
memory/3060-136-0x00000000051E0000-0x00000000051EA000-memory.dmp

Filesize
40KB

Download
memory/4392-140-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4392-142-0x0000000005DE0000-0x0000000005E46000-memory.dmp

Filesize
408KB

Download
memory/4392-143-0x0000000007220000-0x0000000007270000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads