agenttesla | 4e9b3f914eaa619fc41ec582d09594b67cf581d38d8c0d4ff911b2d2d37f7846

Analysis

max time kernel
166s
max time network
173s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
07/03/2024, 15:27

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General

Target

Pago Transferencias 897877667.exe
Size

812KB
MD5

fb8b15d6bd446628322c1b99b8fa8fd6
SHA1

d78c815199c63a24d0b290ed4ef641ea2a301a94
SHA256

4e9b3f914eaa619fc41ec582d09594b67cf581d38d8c0d4ff911b2d2d37f7846
SHA512

8cb436beced7910dc2d82687d413389b450a22ed6fd731752852cb6e313161189130524190b310acf447a1799ac1580e35cf6552c8b27c899dee21df97f9be9f
SSDEEP

12288:mgOiqjF+Wf8BHOLjv6T+lPs9szHc0DcBqQvzorzKfbV6pBp5unRO:mgYF+xVP4U9sbmXorCV6rp5uRO

Score

10^/10

agenttesla guloader downloader keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.ardsmmm.com
Port:
587
Username:
[email protected]
Password:
Ard2015**
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader

Loads dropped DLL 1 IoCs

pid	Process
220	Pago Transferencias 897877667.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 2 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

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
60	drive.google.com
61	drive.google.com

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Proenzym.ini	Pago Transferencias 897877667.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2916	Pago Transferencias 897877667.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
220	Pago Transferencias 897877667.exe
2916	Pago Transferencias 897877667.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 220 set thread context of 2916	220	Pago Transferencias 897877667.exe	108

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\sequoia.ini	Pago Transferencias 897877667.exe
File opened for modification	C:\Windows\staalhaardt\stejlepladsers.kam	Pago Transferencias 897877667.exe
File created	C:\Windows\fljetoners\monochrome.lnk	Pago Transferencias 897877667.exe
File opened for modification	C:\Windows\resources\sjapper\Tolvtedel.for	Pago Transferencias 897877667.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2916	Pago Transferencias 897877667.exe
2916	Pago Transferencias 897877667.exe
2916	Pago Transferencias 897877667.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
220	Pago Transferencias 897877667.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2916	Pago Transferencias 897877667.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 220 wrote to memory of 2916	220	Pago Transferencias 897877667.exe	108
PID 220 wrote to memory of 2916	220	Pago Transferencias 897877667.exe	108
PID 220 wrote to memory of 2916	220	Pago Transferencias 897877667.exe	108
PID 220 wrote to memory of 2916	220	Pago Transferencias 897877667.exe	108
PID 220 wrote to memory of 2916	220	Pago Transferencias 897877667.exe	108

C:\Users\Admin\AppData\Local\Temp\Pago Transferencias 897877667.exe
"C:\Users\Admin\AppData\Local\Temp\Pago Transferencias 897877667.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:220
- C:\Users\Admin\AppData\Local\Temp\Pago Transferencias 897877667.exe
  "C:\Users\Admin\AppData\Local\Temp\Pago Transferencias 897877667.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2916

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=2392 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8
1⤵
PID:1744

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsjE685.tmp\Spahees99.lnk

Filesize
1KB

MD5
055df554a7743ac647504ef92c7533a3

SHA1
c91dd0b0b417a699b4e7e2a989340641b0bdc443

SHA256
afcf6dc345748919e446fc94a70930b44e3d03bf0973acdd97d7050255641044

SHA512
532a672595aca5badd1e36ab0c8b59509cf9e6a9b91b7293a438685390b293da1955618c4100f2a21790395dd8b16cbf566aa5839bf930c3636997807cd9542d

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsjE685.tmp\System.dll

Filesize
12KB

MD5
0d7ad4f45dc6f5aa87f606d0331c6901

SHA1
48df0911f0484cbe2a8cdd5362140b63c41ee457

SHA256
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

SHA512
c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

Download Submit
memory/220-287-0x00000000052B0000-0x0000000007A66000-memory.dmp

Filesize
39.7MB

Download
memory/220-288-0x00000000052B0000-0x0000000007A66000-memory.dmp

Filesize
39.7MB

Download
memory/220-289-0x00000000779A1000-0x0000000077AC1000-memory.dmp

Filesize
1.1MB

Download
memory/220-290-0x00000000745F0000-0x00000000745F7000-memory.dmp

Filesize
28KB

Download
memory/220-308-0x00000000052B0000-0x0000000007A66000-memory.dmp

Filesize
39.7MB

Download
memory/2916-307-0x00000000779A1000-0x0000000077AC1000-memory.dmp

Filesize
1.1MB

Download
memory/2916-312-0x00000000004E0000-0x0000000000520000-memory.dmp

Filesize
256KB

Download
memory/2916-306-0x00000000004E0000-0x0000000001734000-memory.dmp

Filesize
18.3MB

Download
memory/2916-292-0x0000000077A28000-0x0000000077A29000-memory.dmp

Filesize
4KB

Download
memory/2916-291-0x0000000001740000-0x0000000003EF6000-memory.dmp

Filesize
39.7MB

Download
memory/2916-310-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/2916-311-0x0000000001740000-0x0000000003EF6000-memory.dmp

Filesize
39.7MB

Download
memory/2916-293-0x0000000077A45000-0x0000000077A46000-memory.dmp

Filesize
4KB

Download
memory/2916-313-0x0000000036C20000-0x00000000371C4000-memory.dmp

Filesize
5.6MB

Download
memory/2916-314-0x0000000037370000-0x0000000037380000-memory.dmp

Filesize
64KB

Download
memory/2916-315-0x00000000348D0000-0x0000000034936000-memory.dmp

Filesize
408KB

Download
memory/2916-316-0x0000000037580000-0x00000000375D0000-memory.dmp

Filesize
320KB

Download
memory/2916-317-0x00000000375D0000-0x0000000037662000-memory.dmp

Filesize
584KB

Download
memory/2916-319-0x0000000037690000-0x000000003769A000-memory.dmp

Filesize
40KB

Download
memory/2916-321-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/2916-322-0x0000000037370000-0x0000000037380000-memory.dmp

Filesize
64KB

Download