agenttesla | 0a8368bab522deb622eca5805bc7bc6da0d4a6a63fae959c41c22c7d0b5ffa63

General

Target

New PO #23546738.exe
Size

707KB
MD5

80c0b9e8a00242d0fb960584d89d745e
SHA1

fb6bb9c955f030eb906e532813f7c7c6102ec55e
SHA256

0a8368bab522deb622eca5805bc7bc6da0d4a6a63fae959c41c22c7d0b5ffa63
SHA512

539017fd581d853b9e369eea90447001b08eb816948b3ab45fc9b082cfaaf65f1bb4b3af6cefb22bb1aae3190917ef47d41ce4c1794d546c2e023b628c6d3a71
SSDEEP

12288:l3B2nTxM9+/nT92EiggkPIYP1QF7MKqv27bYyywV37Zb:lSbT92E8kPT1QFJ22GwVrF

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
olu chu kwu 554
Email To:
[email protected]

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-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	New PO #23546738.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-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New PO #23546738.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New PO #23546738.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New PO #23546738.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
31	api.ipify.org
32	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4192 set thread context of 2508	4192	New PO #23546738.exe	91

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
1364	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4192	New PO #23546738.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4192	New PO #23546738.exe
Token: SeDebugPrivilege	2508	New PO #23546738.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4192 wrote to memory of 1364	4192	New PO #23546738.exe	89
PID 4192 wrote to memory of 1364	4192	New PO #23546738.exe	89
PID 4192 wrote to memory of 1364	4192	New PO #23546738.exe	89
PID 4192 wrote to memory of 2508	4192	New PO #23546738.exe	91
PID 4192 wrote to memory of 2508	4192	New PO #23546738.exe	91
PID 4192 wrote to memory of 2508	4192	New PO #23546738.exe	91
PID 4192 wrote to memory of 2508	4192	New PO #23546738.exe	91
PID 4192 wrote to memory of 2508	4192	New PO #23546738.exe	91
PID 4192 wrote to memory of 2508	4192	New PO #23546738.exe	91
PID 4192 wrote to memory of 2508	4192	New PO #23546738.exe	91
PID 4192 wrote to memory of 2508	4192	New PO #23546738.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New PO #23546738.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New PO #23546738.exe

C:\Users\Admin\AppData\Local\Temp\New PO #23546738.exe
"C:\Users\Admin\AppData\Local\Temp\New PO #23546738.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4192
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YJmfGxcN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp20B7.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1364
- C:\Users\Admin\AppData\Local\Temp\New PO #23546738.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2508

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\New PO #23546738.exe.log

Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp20B7.tmp

Filesize
1KB

MD5
68ce895b347af26733ba00a3755999fd

SHA1
cf488a09f7a4c733163f76806cc3b34ba6571c72

SHA256
d27a319fd5c11ca4d921f693f995106d45e89c0d1cb4a1797360b37f39fbafe8

SHA512
485393c7df002ee70c8364287d53ad8988ba6c864341bd3d2a302a975fa20942a09fa036a2b29b79305eb9106aea07763627ff131ebb19d24e25d74606db6723

Download Submit
memory/2508-148-0x0000000005500000-0x0000000005510000-memory.dmp

Filesize
64KB

Download
memory/2508-144-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2508-151-0x0000000005500000-0x0000000005510000-memory.dmp

Filesize
64KB

Download
memory/2508-150-0x00000000070F0000-0x00000000072B2000-memory.dmp

Filesize
1.8MB

Download
memory/2508-149-0x0000000006ED0000-0x0000000006F20000-memory.dmp

Filesize
320KB

Download
memory/2508-147-0x00000000053C0000-0x0000000005426000-memory.dmp

Filesize
408KB

Download
memory/4192-139-0x0000000005690000-0x00000000056A0000-memory.dmp

Filesize
64KB

Download
memory/4192-135-0x00000000059C0000-0x0000000005F64000-memory.dmp

Filesize
5.6MB

Download
memory/4192-134-0x0000000005300000-0x000000000539C000-memory.dmp

Filesize
624KB

Download
memory/4192-140-0x0000000005690000-0x00000000056A0000-memory.dmp

Filesize
64KB

Download
memory/4192-133-0x0000000000A70000-0x0000000000B26000-memory.dmp

Filesize
728KB

Download
memory/4192-136-0x00000000054B0000-0x0000000005542000-memory.dmp

Filesize
584KB

Download
memory/4192-138-0x00000000056A0000-0x00000000056F6000-memory.dmp

Filesize
344KB

Download
memory/4192-137-0x0000000005410000-0x000000000541A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads