5d5f5d1237220b5c74088668ded4ea66f3802eda2a5037a2594349a47602d13d

Analysis

max time kernel
139s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
09/02/2023, 00:52

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General

Target

file.exe
Size

1.9MB
MD5

af97a8118aacf072359407791e061226
SHA1

55de218612548edd76d537955386c4cb8dc3bfc4
SHA256

5d5f5d1237220b5c74088668ded4ea66f3802eda2a5037a2594349a47602d13d
SHA512

0619a7e506045ba29b1902fbf92b0d6faa3cdbda7db517d8bfbb43486a39e7117e5b12d03df13863ea92435cd654dbb18eb0d664c27b7135aec5b32e2477fd65
SSDEEP

49152:ky1SM0SB8OvtkOAEq6KSAcfJyTAY/9jXe:kQVlOktjq6Vfs/9jO

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4296	ntlhost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe"	file.exe

GoLang User-Agent 1 IoCs

Uses default user-agent string defined by GoLang HTTP packages.

description	flow	ioc
HTTP User-Agent header	6	Go-http-client/1.1

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4828 wrote to memory of 4296	4828	file.exe	81
PID 4828 wrote to memory of 4296	4828	file.exe	81
PID 4828 wrote to memory of 4296	4828	file.exe	81

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4828
- C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe
  C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe
  2⤵
  - Executes dropped EXE
  PID:4296

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe

Filesize
715.9MB

MD5
86615b6fcd6dfbf698234c3215c68048

SHA1
98b14ef6409d960bfe1944ebdd700597204e3fa6

SHA256
30458a0326b3f3856beaa6baab443d2e644c720dfa30f450a371558d0400f279

SHA512
e4f082036aed8ff9b8f6a9e7cbdf3c206c7651618ce0eede77cfd63dd2ab4c89eee133ef2eb1e3362f354fda3caf8e37e9d5b48dd34d71c61b3b586fdaa93aad

Download Submit
C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe

Filesize
715.9MB

MD5
86615b6fcd6dfbf698234c3215c68048

SHA1
98b14ef6409d960bfe1944ebdd700597204e3fa6

SHA256
30458a0326b3f3856beaa6baab443d2e644c720dfa30f450a371558d0400f279

SHA512
e4f082036aed8ff9b8f6a9e7cbdf3c206c7651618ce0eede77cfd63dd2ab4c89eee133ef2eb1e3362f354fda3caf8e37e9d5b48dd34d71c61b3b586fdaa93aad

Download Submit
memory/4296-139-0x0000000002496000-0x0000000002640000-memory.dmp

Filesize
1.7MB

Download
memory/4296-140-0x0000000000400000-0x0000000000803000-memory.dmp

Filesize
4.0MB

Download
memory/4296-141-0x0000000000400000-0x0000000000803000-memory.dmp

Filesize
4.0MB

Download
memory/4828-132-0x00000000026BD000-0x0000000002867000-memory.dmp

Filesize
1.7MB

Download
memory/4828-133-0x0000000002870000-0x0000000002C40000-memory.dmp

Filesize
3.8MB

Download
memory/4828-134-0x0000000000400000-0x0000000000803000-memory.dmp

Filesize
4.0MB

Download
memory/4828-138-0x0000000000400000-0x0000000000803000-memory.dmp

Filesize
4.0MB

Download