agenttesla | f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b

Analysis

max time kernel
148s
max time network
140s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
05-11-2024 04:35

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General

Target

f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe
Size

1.2MB
MD5

9ed064f0feb2397bb999563751c20b92
SHA1

810d6882ab53614c20950da17021650fed89f5d8
SHA256

f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b
SHA512

ef7d103dad237045980181b85ddc6b0d4ffbbcbdf38eb2a56b09823baae143f52c336f89ec45bd872f7dca255156b9f44208e979e37f0995a18fc7f2de359ffd
SSDEEP

24576:S4nhDoAFq5Avnh/KPGB8mTyBNFX3FZNXLGQ7WczkxFnfbP9:S+hkT6vnh/J8oy5X3PNXKQKczg

Score

10^/10

agenttesla guloader discovery downloader keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.showpiece.trillennium.biz
Port:
587
Username:
[email protected]
Password:
3KJ[T.3]fsSW
Email To:
[email protected]

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
2756	f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.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

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

Web Service

T1102

flow	ioc
3	drive.google.com
5	drive.google.com

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
14	api.ipify.org
15	api.ipify.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
876	f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2756	f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe
876	f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2756 set thread context of 876	2756	f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe	30

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\brisantgranatens\baegersvamp.For	f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe
File opened for modification	C:\Program Files (x86)\Common Files\Azonic255\lithoclase.ini	f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.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	f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
876	f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe
876	f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2756	f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	876	f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
876	f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 876	2756	f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe	30
PID 2756 wrote to memory of 876	2756	f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe	30
PID 2756 wrote to memory of 876	2756	f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe	30
PID 2756 wrote to memory of 876	2756	f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe	30
PID 2756 wrote to memory of 876	2756	f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe	30
PID 2756 wrote to memory of 876	2756	f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe	30

C:\Users\Admin\AppData\Local\Temp\f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe
"C:\Users\Admin\AppData\Local\Temp\f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Users\Admin\AppData\Local\Temp\f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe
  "C:\Users\Admin\AppData\Local\Temp\f849a928785cb16a719369fbe98c9246bc84d634f3547467a3223fa148a6b09b.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:876

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

Web Service

T1102

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\nsy48F4.tmp\System.dll

Filesize
12KB

MD5
d6f54d2cefdf58836805796f55bfc846

SHA1
b980addc1a755b968dd5799179d3b4f1c2de9d2d

SHA256
f917aef484d1fbb4d723b2e2d3045cb6f5f664e61fbb3d5c577bd1c215de55d9

SHA512
ce67da936a93d46ef7e81abc8276787c82fd844c03630ba18afc3528c7e420c3228bfe82aeda083bb719f2d1314afae913362abd1e220cb364606519690d45db

Download Submit
memory/876-20-0x0000000077C80000-0x0000000077E29000-memory.dmp

Filesize
1.7MB

Download
memory/876-23-0x0000000077C80000-0x0000000077E29000-memory.dmp

Filesize
1.7MB

Download
memory/876-22-0x0000000000820000-0x0000000001882000-memory.dmp

Filesize
16.4MB

Download
memory/876-45-0x0000000000820000-0x0000000001882000-memory.dmp

Filesize
16.4MB

Download
memory/876-46-0x0000000000820000-0x0000000000860000-memory.dmp

Filesize
256KB

Download
memory/2756-16-0x0000000003B00000-0x0000000005536000-memory.dmp

Filesize
26.2MB

Download
memory/2756-17-0x0000000077C81000-0x0000000077D82000-memory.dmp

Filesize
1.0MB

Download
memory/2756-18-0x0000000077C80000-0x0000000077E29000-memory.dmp

Filesize
1.7MB

Download
memory/2756-19-0x0000000003B00000-0x0000000005536000-memory.dmp

Filesize
26.2MB

Download
memory/2756-21-0x0000000003B00000-0x0000000005536000-memory.dmp

Filesize
26.2MB

Download