agenttesla | 9b4b08df3d4c1b28e9d6155edd08d844cb91051910007fe458bded8139fb228c

Analysis

max time kernel
143s
max time network
137s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
09/07/2024, 09:38

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General

Target
Ungutturally.exe
Size 457KB
Sample240709-ll2pfsxbpj
SHA256 d16dbafb5626e7299ec1deb1f87872b3fcd8f653c30bf99da53f5271003fe731
MD5 dc19646e2fb2a570c359460628e8d122
SHA1 60a930c4b6740bc5cd48894387f9d893fc49cc49
SHA512 659028c4d9c72489089b724c0c8c608eec3c01a7e3392a0d6b6258c3cdea757c81abf0a41e9cf82c341a4b4e17f4bd98ca17ae6c1b10895276084298cf4bb9b5
SSDEEP 12288:OgPut44ew0JzpED/IrP8R+M8BzIRyR947dr7tBLb:B1Fw03S/uPDM8RIQ4Jd5b
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla guloader downloader keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
ftp
Host
ftp://mail.hearing-vision.com
Port
21
Username
[email protected]
Password
LILKOOLL14!

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
2380	Ungutturally.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

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
5	ip-api.com

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2180	Ungutturally.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2380	Ungutturally.exe
2180	Ungutturally.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2380 set thread context of 2180	2380	Ungutturally.exe	31

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Common Files\arbejdsfeltets\sallingsundbroens.lnk	Ungutturally.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2180	Ungutturally.exe
2180	Ungutturally.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2380	Ungutturally.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2180	Ungutturally.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2180	2380	Ungutturally.exe	31
PID 2380 wrote to memory of 2180	2380	Ungutturally.exe	31
PID 2380 wrote to memory of 2180	2380	Ungutturally.exe	31
PID 2380 wrote to memory of 2180	2380	Ungutturally.exe	31
PID 2380 wrote to memory of 2180	2380	Ungutturally.exe	31
PID 2380 wrote to memory of 2180	2380	Ungutturally.exe	31

C:\Users\Admin\AppData\Local\Temp\Ungutturally.exe
"C:\Users\Admin\AppData\Local\Temp\Ungutturally.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Users\Admin\AppData\Local\Temp\Ungutturally.exe
  "C:\Users\Admin\AppData\Local\Temp\Ungutturally.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2180

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

Exfiltration

Impact

Replay Monitor

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Downloads

System.dll

Path \Users\Admin\AppData\Local\Temp\nsoC811.tmp\System.dll
Size 11KB
SHA256 2e226715419a5882e2e14278940ee8ef0aa648a3ef7af5b3dc252674111962bc
MD5 a4dd044bcd94e9b3370ccf095b31f896
SHA1 17c78201323ab2095bc53184aa8267c9187d5173
SHA512 87335a43b9ca13e1300c7c23e702e87c669e2bcf4f6065f0c684fc53165e9c1f091cc4d79a3eca3910f0518d3b647120ac0be1a68eaade2e75eaa64adfc92c5a
SSDEEP 192:em24sihno00Wfl97nH6T2enXwWobpWBTU4VtHT7dmN35OlESl:m8QIl975eXqlWBrz7YLOlE
MD5 SHA1 SHA512 SSDEEP

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memory/2180-30-0x0000000077590000-0x0000000077739000-memory.dmp

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memory/2180-32-0x0000000000480000-0x00000000014E2000-memory.dmp

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memory/2180-33-0x0000000000480000-0x00000000014E2000-memory.dmp

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memory/2180-35-0x0000000000480000-0x00000000004C2000-memory.dmp

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memory/2380-27-0x0000000003840000-0x0000000004300000-memory.dmp

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memory/2380-28-0x0000000077591000-0x0000000077692000-memory.dmp

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memory/2380-29-0x0000000077590000-0x0000000077739000-memory.dmp

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memory/2380-31-0x0000000003840000-0x0000000004300000-memory.dmp

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memory/2380-34-0x0000000003840000-0x0000000004300000-memory.dmp

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