agenttesla | 03b4f637db3a78cb4fc89d4a3872b59eadbdf5d784b5496745e4a218fe109a99

Analysis

max time kernel
140s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 08:11

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General

Target

Awb 4586109146.exe
Size

776KB
MD5

a3bb238f798a512f7465f804735b8f9a
SHA1

31c7c96a95c22e7f4ab58b0f5330c4c79172be79
SHA256

9775ae8b4fa626011fb022ede69e2ec2bec2b7868bb70bda276da0145b4b410f
SHA512

4038f9e8b93e6e4dfa4f4b7493bb2e5988ee29a2d91029fa136549f424140cf0a77426d8739d40e95c5ac943681b384bdeb966d84bce0693c24d578220c1365e
SSDEEP

24576:4dEqcVwnUAFPtUBCSoR94Ou2sgnqVNO7qg+E5cnj:HqcVwnhFPtU7oR3uIn6NAqDE5cnj

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.concaribe.com
Port:
21
Username:
[email protected]
Password:
ro}UWgz#!38E

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 6 IoCs

pid	Process
2804	Awb 4586109146.exe
2804	Awb 4586109146.exe
2804	Awb 4586109146.exe
2804	Awb 4586109146.exe
2804	Awb 4586109146.exe
2804	Awb 4586109146.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

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
24	api.ipify.org
25	api.ipify.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
4696	Awb 4586109146.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2804	Awb 4586109146.exe
4696	Awb 4586109146.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2804 set thread context of 4696	2804	Awb 4586109146.exe	89

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\locale\Indviklingerne.ini	Awb 4586109146.exe
File opened for modification	C:\Windows\resources\havarierne\firmamrke.kna	Awb 4586109146.exe
File opened for modification	C:\Windows\resources\0409\tripennate\Funktionrgruppes19.has	Awb 4586109146.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	Awb 4586109146.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Awb 4586109146.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4696	Awb 4586109146.exe
4696	Awb 4586109146.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2804	Awb 4586109146.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4696	Awb 4586109146.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2804 wrote to memory of 4696	2804	Awb 4586109146.exe	89
PID 2804 wrote to memory of 4696	2804	Awb 4586109146.exe	89
PID 2804 wrote to memory of 4696	2804	Awb 4586109146.exe	89
PID 2804 wrote to memory of 4696	2804	Awb 4586109146.exe	89
PID 2804 wrote to memory of 4696	2804	Awb 4586109146.exe	89

C:\Users\Admin\AppData\Local\Temp\Awb 4586109146.exe
"C:\Users\Admin\AppData\Local\Temp\Awb 4586109146.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:2804
- C:\Users\Admin\AppData\Local\Temp\Awb 4586109146.exe
  "C:\Users\Admin\AppData\Local\Temp\Awb 4586109146.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsg886B.tmp\LangDLL.dll

Filesize
5KB

MD5
ab1db56369412fe8476fefffd11e4cc0

SHA1
daad036a83b2ee2fa86d840a34a341100552e723

SHA256
6f14c8f01f50a30743dac68c5ac813451463dfb427eb4e35fcdfe2410e1a913b

SHA512
8d886643b4fc24adf78f76b663227d6e61863f89e0cbd49548f40dd040666ca94ea46bec9e336850e4f300995d56e6dc85b689c8e09ff46758822d280f06b03d

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsg886B.tmp\System.dll

Filesize
12KB

MD5
0d7ad4f45dc6f5aa87f606d0331c6901

SHA1
48df0911f0484cbe2a8cdd5362140b63c41ee457

SHA256
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

SHA512
c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

Download Submit
memory/2804-28-0x0000000077681000-0x00000000777A1000-memory.dmp

Filesize
1.1MB

Download
memory/2804-29-0x0000000077681000-0x00000000777A1000-memory.dmp

Filesize
1.1MB

Download
memory/2804-30-0x00000000742D5000-0x00000000742D6000-memory.dmp

Filesize
4KB

Download
memory/4696-33-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/4696-38-0x0000000039130000-0x0000000039196000-memory.dmp

Filesize
408KB

Download
memory/4696-34-0x0000000077681000-0x00000000777A1000-memory.dmp

Filesize
1.1MB

Download
memory/4696-31-0x0000000077708000-0x0000000077709000-memory.dmp

Filesize
4KB

Download
memory/4696-35-0x00000000728CE000-0x00000000728CF000-memory.dmp

Filesize
4KB

Download
memory/4696-36-0x0000000000480000-0x00000000004C2000-memory.dmp

Filesize
264KB

Download
memory/4696-37-0x0000000038B80000-0x0000000039124000-memory.dmp

Filesize
5.6MB

Download
memory/4696-32-0x0000000077725000-0x0000000077726000-memory.dmp

Filesize
4KB

Download
memory/4696-39-0x00000000728C0000-0x0000000073070000-memory.dmp

Filesize
7.7MB

Download
memory/4696-40-0x0000000039AB0000-0x0000000039B00000-memory.dmp

Filesize
320KB

Download
memory/4696-41-0x0000000039B00000-0x0000000039B92000-memory.dmp

Filesize
584KB

Download
memory/4696-42-0x0000000039BD0000-0x0000000039BDA000-memory.dmp

Filesize
40KB

Download
memory/4696-44-0x00000000728CE000-0x00000000728CF000-memory.dmp

Filesize
4KB

Download
memory/4696-45-0x00000000728C0000-0x0000000073070000-memory.dmp

Filesize
7.7MB

Download