agenttesla | 9f81611d061efdb627d532eaa96e973e278350c6109b71a5e1e8806abaf32f4a

Analysis

max time kernel
152s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
16/05/2024, 03:09

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General

Target

1. 견적 요청의 건 _ Yeosu.exe
Size

369KB
MD5

8aa20448311f07a2c3e2e5a7a416c7ef
SHA1

4b9556b41ee596d7a0a40e16cf65e8c37ed1686c
SHA256

9f81611d061efdb627d532eaa96e973e278350c6109b71a5e1e8806abaf32f4a
SHA512

65af6833178d21ddb0d810b27f063240ae4b3ba8c0c47cc077e8dd8b94b6bb668add5c7f9ace57a498e6cdf2590f2c1a1b2f89c723bc24c80273c8b693999896
SSDEEP

6144:FspNjlsoBNb6TM6cEeO3w6Inr2QYbTSrg2APyM2b7MR:FcATM6cEJInNYT4tAP8UR

Score

10^/10

agenttesla guloader downloader keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
cp5ua.hyperhost.ua
Port:
587
Username:
[email protected]
Password:
7213575aceACE@#
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
3456	1. 견적 요청의 건 _ Yeosu.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
46	drive.google.com
47	drive.google.com

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2868	1. 견적 요청의 건 _ Yeosu.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3456	1. 견적 요청의 건 _ Yeosu.exe
2868	1. 견적 요청의 건 _ Yeosu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3456 set thread context of 2868	3456	1. 견적 요청의 건 _ Yeosu.exe	100

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\resources\0409\stjernemrkers\mythonomy.lnk	1. 견적 요청의 건 _ Yeosu.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
2868	1. 견적 요청의 건 _ Yeosu.exe
2868	1. 견적 요청의 건 _ Yeosu.exe
2868	1. 견적 요청의 건 _ Yeosu.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3456	1. 견적 요청의 건 _ Yeosu.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2868	1. 견적 요청의 건 _ Yeosu.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3456 wrote to memory of 2868	3456	1. 견적 요청의 건 _ Yeosu.exe	100
PID 3456 wrote to memory of 2868	3456	1. 견적 요청의 건 _ Yeosu.exe	100
PID 3456 wrote to memory of 2868	3456	1. 견적 요청의 건 _ Yeosu.exe	100
PID 3456 wrote to memory of 2868	3456	1. 견적 요청의 건 _ Yeosu.exe	100
PID 3456 wrote to memory of 2868	3456	1. 견적 요청의 건 _ Yeosu.exe	100

C:\Users\Admin\AppData\Local\Temp\1. 견적 요청의 건 _ Yeosu.exe
"C:\Users\Admin\AppData\Local\Temp\1. 견적 요청의 건 _ Yeosu.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3456
- C:\Users\Admin\AppData\Local\Temp\1. 견적 요청의 건 _ Yeosu.exe
  "C:\Users\Admin\AppData\Local\Temp\1. 견적 요청의 건 _ Yeosu.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2868

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=3964 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8
1⤵
PID:3132

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsv39E8.tmp\System.dll

Filesize
11KB

MD5
17ed1c86bd67e78ade4712be48a7d2bd

SHA1
1cc9fe86d6d6030b4dae45ecddce5907991c01a0

SHA256
bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb

SHA512
0cbed521e7d6d1f85977b3f7d3ca7ac34e1b5495b69fd8c7bfa1a846baf53b0ecd06fe1ad02a3599082ffacaf8c71a3bb4e32dec05f8e24859d736b828092cd5

Download Submit
memory/2868-33-0x0000000035DE0000-0x0000000036384000-memory.dmp

Filesize
5.6MB

Download
memory/2868-31-0x00000000016F0000-0x0000000002FD2000-memory.dmp

Filesize
24.9MB

Download
memory/2868-39-0x0000000077271000-0x0000000077391000-memory.dmp

Filesize
1.1MB

Download
memory/2868-38-0x0000000036770000-0x000000003677A000-memory.dmp

Filesize
40KB

Download
memory/2868-13-0x00000000016F0000-0x0000000002FD2000-memory.dmp

Filesize
24.9MB

Download
memory/2868-14-0x00000000772F8000-0x00000000772F9000-memory.dmp

Filesize
4KB

Download
memory/2868-15-0x0000000077315000-0x0000000077316000-memory.dmp

Filesize
4KB

Download
memory/2868-28-0x0000000000490000-0x00000000016E4000-memory.dmp

Filesize
18.3MB

Download
memory/2868-37-0x0000000036690000-0x0000000036722000-memory.dmp

Filesize
584KB

Download
memory/2868-32-0x0000000000490000-0x00000000004D0000-memory.dmp

Filesize
256KB

Download
memory/2868-36-0x0000000035D70000-0x0000000035DC0000-memory.dmp

Filesize
320KB

Download
memory/2868-34-0x0000000033960000-0x00000000339C6000-memory.dmp

Filesize
408KB

Download
memory/3456-9-0x0000000004ED0000-0x00000000067B2000-memory.dmp

Filesize
24.9MB

Download
memory/3456-29-0x0000000004ED0000-0x00000000067B2000-memory.dmp

Filesize
24.9MB

Download
memory/3456-10-0x0000000004ED0000-0x00000000067B2000-memory.dmp

Filesize
24.9MB

Download
memory/3456-12-0x0000000010004000-0x0000000010005000-memory.dmp

Filesize
4KB

Download
memory/3456-11-0x0000000077271000-0x0000000077391000-memory.dmp

Filesize
1.1MB

Download