agenttesla | 209320f18913df5ab82d4792f58f43eff5b2348a4ce1498941f77c3e25b2531a

General

Target

243424396-041942-sanlccjavap0003-2745.exe
Size

485KB
MD5

570f75822327ab67501bcf60b5a5015d
SHA1

f8247519442122f8b727910ae977a3072b9e706e
SHA256

3e60205f7f9428199cf532ac669704b7c0b4112f35aa8061d6efc941948e9e35
SHA512

e2aa892438630c43d1fb07d5cf1ecc5781d6a8079385d4095eaa83aba9a5234a78111d396b91499b405adde712c4b6fb6be9db9dc7aaa16d6f5dcc64f3cea912
SSDEEP

6144:aasRfC5mAhrNngWKklCnLUP4igs2fr0hQtP9pDpmIblrsXU/4pd6nscwcT4UyO:erAvguoLUNUrfB99sGlrEpsncM

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5147163644:AAEDa60jT_0f_OgilwiEp-CBiARVO2Rx3Mo/

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Agenttesla family
agenttesla

Loads dropped DLL 1 IoCs

pid	Process
4672	243424396-041942-sanlccjavap0003-2745.exe

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

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2016	243424396-041942-sanlccjavap0003-2745.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4672	243424396-041942-sanlccjavap0003-2745.exe
2016	243424396-041942-sanlccjavap0003-2745.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4672 set thread context of 2016	4672	243424396-041942-sanlccjavap0003-2745.exe	89

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Alebion\armenian.iso	243424396-041942-sanlccjavap0003-2745.exe

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

System Information Discovery
T1082

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	243424396-041942-sanlccjavap0003-2745.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	243424396-041942-sanlccjavap0003-2745.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2016	243424396-041942-sanlccjavap0003-2745.exe
2016	243424396-041942-sanlccjavap0003-2745.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4672	243424396-041942-sanlccjavap0003-2745.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2016	243424396-041942-sanlccjavap0003-2745.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4672 wrote to memory of 2016	4672	243424396-041942-sanlccjavap0003-2745.exe	89
PID 4672 wrote to memory of 2016	4672	243424396-041942-sanlccjavap0003-2745.exe	89
PID 4672 wrote to memory of 2016	4672	243424396-041942-sanlccjavap0003-2745.exe	89
PID 4672 wrote to memory of 2016	4672	243424396-041942-sanlccjavap0003-2745.exe	89
PID 4672 wrote to memory of 2016	4672	243424396-041942-sanlccjavap0003-2745.exe	89

C:\Users\Admin\AppData\Local\Temp\243424396-041942-sanlccjavap0003-2745.exe
"C:\Users\Admin\AppData\Local\Temp\243424396-041942-sanlccjavap0003-2745.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4672
- C:\Users\Admin\AppData\Local\Temp\243424396-041942-sanlccjavap0003-2745.exe
  "C:\Users\Admin\AppData\Local\Temp\243424396-041942-sanlccjavap0003-2745.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2016

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 Information Discovery

1

T1082

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\nsnA6D1.tmp\System.dll

Filesize
11KB

MD5
cf85183b87314359488b850f9e97a698

SHA1
6b6c790037eec7ebea4d05590359cb4473f19aea

SHA256
3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac

SHA512
fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

Download Submit
memory/2016-26-0x0000000071D8E000-0x0000000071D8F000-memory.dmp

Filesize
4KB

Download
memory/2016-35-0x0000000039A30000-0x0000000039A3A000-memory.dmp

Filesize
40KB

Download
memory/2016-23-0x0000000000450000-0x00000000016A4000-memory.dmp

Filesize
18.3MB

Download
memory/2016-17-0x0000000076F18000-0x0000000076F19000-memory.dmp

Filesize
4KB

Download
memory/2016-18-0x0000000076F35000-0x0000000076F36000-memory.dmp

Filesize
4KB

Download
memory/2016-22-0x0000000000450000-0x00000000016A4000-memory.dmp

Filesize
18.3MB

Download
memory/2016-24-0x0000000076E91000-0x0000000076FB1000-memory.dmp

Filesize
1.1MB

Download
memory/2016-27-0x0000000000450000-0x0000000000490000-memory.dmp

Filesize
256KB

Download
memory/2016-37-0x0000000071D80000-0x0000000072530000-memory.dmp

Filesize
7.7MB

Download
memory/2016-36-0x0000000071D8E000-0x0000000071D8F000-memory.dmp

Filesize
4KB

Download
memory/2016-25-0x0000000076E91000-0x0000000076FB1000-memory.dmp

Filesize
1.1MB

Download
memory/2016-28-0x0000000038900000-0x0000000038EA4000-memory.dmp

Filesize
5.6MB

Download
memory/2016-29-0x0000000038840000-0x00000000388A6000-memory.dmp

Filesize
408KB

Download
memory/2016-30-0x0000000071D80000-0x0000000072530000-memory.dmp

Filesize
7.7MB

Download
memory/2016-31-0x00000000394A0000-0x00000000394F0000-memory.dmp

Filesize
320KB

Download
memory/2016-32-0x00000000394F0000-0x000000003958C000-memory.dmp

Filesize
624KB

Download
memory/2016-34-0x0000000039950000-0x00000000399E2000-memory.dmp

Filesize
584KB

Download
memory/4672-14-0x0000000076E91000-0x0000000076FB1000-memory.dmp

Filesize
1.1MB

Download
memory/4672-16-0x0000000010004000-0x0000000010005000-memory.dmp

Filesize
4KB

Download
memory/4672-15-0x0000000076E91000-0x0000000076FB1000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing