a71bf0c058f1e499400fc4d75dbb5bed6a90526cbc7597317b702f20c464c7bb

Analysis

max time kernel
96s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
02/02/2023, 11:50

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General

Target

7c9ae9ccfe7eac83b4ddddd9cc01212d.exe
Size

1.7MB
MD5

7c9ae9ccfe7eac83b4ddddd9cc01212d
SHA1

bb07847d73cd18caee230b59c8077915c091a9b4
SHA256

a71bf0c058f1e499400fc4d75dbb5bed6a90526cbc7597317b702f20c464c7bb
SHA512

5444e38b75725d20d92f4b0a0f362162d53b4f7a084d8e3aac81c26d7c3b7e1d934fed5fb39a6f00162fe9be63c72b881480b677100095b79a9514689a0b98c8
SSDEEP

49152:sMAaOSOOSjiNN+x3Oj1UMXg6iVTC6YLElQItj3kiU:7tQiT+x6eTQe3XU

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2136	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-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe"	7c9ae9ccfe7eac83b4ddddd9cc01212d.exe

GoLang User-Agent 1 IoCs

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

description	flow	ioc
HTTP User-Agent header	29	Go-http-client/1.1

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 764 wrote to memory of 2136	764	7c9ae9ccfe7eac83b4ddddd9cc01212d.exe	85
PID 764 wrote to memory of 2136	764	7c9ae9ccfe7eac83b4ddddd9cc01212d.exe	85
PID 764 wrote to memory of 2136	764	7c9ae9ccfe7eac83b4ddddd9cc01212d.exe	85

C:\Users\Admin\AppData\Local\Temp\7c9ae9ccfe7eac83b4ddddd9cc01212d.exe
"C:\Users\Admin\AppData\Local\Temp\7c9ae9ccfe7eac83b4ddddd9cc01212d.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:764
- C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe
  C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe
  2⤵
  - Executes dropped EXE
  PID:2136

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
716.7MB

MD5
1d31e37e0afd421d5c453863bccceba8

SHA1
7c42cd40bf4e3088c6885389e9e7e178758d91d8

SHA256
857a55b2f0f3086759e0a43f7c2c81d37402a267842507bdf5ece7578f7a0c3f

SHA512
6865eab61fe81c0833c170ef3e3998586a6bacf1c313b0d199a9c7b1eb7f5f54f2a6609e8ee497b3b61a8e21a25017e653774b4013e886ecf12d627167883281

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

Filesize
716.7MB

MD5
1d31e37e0afd421d5c453863bccceba8

SHA1
7c42cd40bf4e3088c6885389e9e7e178758d91d8

SHA256
857a55b2f0f3086759e0a43f7c2c81d37402a267842507bdf5ece7578f7a0c3f

SHA512
6865eab61fe81c0833c170ef3e3998586a6bacf1c313b0d199a9c7b1eb7f5f54f2a6609e8ee497b3b61a8e21a25017e653774b4013e886ecf12d627167883281

Download Submit
memory/764-132-0x000000000293E000-0x0000000002AE8000-memory.dmp

Filesize
1.7MB

Download
memory/764-133-0x0000000002AF0000-0x0000000002EC0000-memory.dmp

Filesize
3.8MB

Download
memory/764-134-0x0000000000400000-0x0000000000803000-memory.dmp

Filesize
4.0MB

Download
memory/764-138-0x0000000000400000-0x0000000000803000-memory.dmp

Filesize
4.0MB

Download
memory/2136-139-0x0000000002574000-0x000000000271E000-memory.dmp

Filesize
1.7MB

Download
memory/2136-140-0x0000000000400000-0x0000000000803000-memory.dmp

Filesize
4.0MB

Download
memory/2136-141-0x0000000000400000-0x0000000000803000-memory.dmp

Filesize
4.0MB

Download