agenttesla | 191bd85257eaf67aa07e0d817ff7ae3afaaaeb0482719ea9848629a2c725ae3d

General

Target

RequestforBestPriceOffer.exe
Size

1.1MB
MD5

9e18f4728b52c742c3fb1bdcffb8f337
SHA1

c135b8e99956573898f65565681dc78f19da120d
SHA256

191bd85257eaf67aa07e0d817ff7ae3afaaaeb0482719ea9848629a2c725ae3d
SHA512

9a321297ad1fc22a5aba5544c21d5f9ba445502da518caca57e2070fd1c4bc76ed28d5416a40b97a09beddec2408e594d0b52bca55101e90c13f9b25c221b277
SSDEEP

24576:fsGRdrEAbm4z4sGRdrEAbm4zTsGRdrEAbm4zAVL5Ff21owuUwDpHXJX:fbdYAm4z4bdYAm4zTbdYAm4zAVL5FuaJ

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
162.254.34.31
Port:
587
Username:
[email protected]
Password:
M992uew1mw6Z
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
T1552.001
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
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

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
21	api.ipify.org
22	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1564 set thread context of 4452	1564	RequestforBestPriceOffer.exe	87

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RequestforBestPriceOffer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4452	regasm.exe
4452	regasm.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1564	RequestforBestPriceOffer.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4452	regasm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1564	RequestforBestPriceOffer.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1564 wrote to memory of 4452	1564	RequestforBestPriceOffer.exe	87
PID 1564 wrote to memory of 4452	1564	RequestforBestPriceOffer.exe	87
PID 1564 wrote to memory of 4452	1564	RequestforBestPriceOffer.exe	87
PID 1564 wrote to memory of 4452	1564	RequestforBestPriceOffer.exe	87

C:\Users\Admin\AppData\Local\Temp\RequestforBestPriceOffer.exe
"C:\Users\Admin\AppData\Local\Temp\RequestforBestPriceOffer.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1564
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4452

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1564-10-0x0000000000BE0000-0x0000000000BE8000-memory.dmp

Filesize
32KB

Download
memory/1564-3-0x0000000000850000-0x0000000000851000-memory.dmp

Filesize
4KB

Download
memory/1564-4-0x0000000000BE0000-0x0000000000BE8000-memory.dmp

Filesize
32KB

Download
memory/1564-2-0x0000000077342000-0x0000000077343000-memory.dmp

Filesize
4KB

Download
memory/4452-11-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4452-7-0x0000000077342000-0x0000000077343000-memory.dmp

Filesize
4KB

Download
memory/4452-9-0x0000000073C1E000-0x0000000073C1F000-memory.dmp

Filesize
4KB

Download
memory/4452-8-0x0000000000D40000-0x0000000000D41000-memory.dmp

Filesize
4KB

Download
memory/4452-5-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4452-12-0x0000000005950000-0x0000000005EF4000-memory.dmp

Filesize
5.6MB

Download
memory/4452-13-0x0000000005320000-0x0000000005386000-memory.dmp

Filesize
408KB

Download
memory/4452-14-0x0000000073C10000-0x00000000743C0000-memory.dmp

Filesize
7.7MB

Download
memory/4452-15-0x0000000006890000-0x00000000068E0000-memory.dmp

Filesize
320KB

Download
memory/4452-16-0x0000000006980000-0x0000000006A12000-memory.dmp

Filesize
584KB

Download
memory/4452-17-0x0000000006900000-0x000000000690A000-memory.dmp

Filesize
40KB

Download
memory/4452-18-0x0000000073C1E000-0x0000000073C1F000-memory.dmp

Filesize
4KB

Download
memory/4452-19-0x0000000073C10000-0x00000000743C0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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