291003d022e462dc6ece1e0d6cf6a636520060358683596b71623f1c71a539c3

Analysis

max time kernel
103s
max time network
174s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
09-02-2023 04:11

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General

Target

file.exe
Size

1.9MB
MD5

69fcca0d67ac4be82b5eed6ce4f155bc
SHA1

64e0406663e0355b75a29220ee4490fb25725a90
SHA256

291003d022e462dc6ece1e0d6cf6a636520060358683596b71623f1c71a539c3
SHA512

21a3a7ca680adcb17b9fcb5b7b6ca01406d0305048dba6ad4b97f1002f8b3023122c770a76ded66eb37d7d0a1732a90f2ceb0b278e60919525e88523c7aa981c
SSDEEP

49152:6zDL7X+Yep6nskNEUCeneZa6Hy4vn78HQSUkXe:mteApNEdeeZa6dYokO

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1556	ntlhost.exe

Loads dropped DLL 2 IoCs

pid	Process
1120	file.exe
1120	file.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-1-5-21-2292972927-2705560509-2768824231-1000\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	2	Go-http-client/1.1

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1120 wrote to memory of 1556	1120	file.exe	27
PID 1120 wrote to memory of 1556	1120	file.exe	27
PID 1120 wrote to memory of 1556	1120	file.exe	27
PID 1120 wrote to memory of 1556	1120	file.exe	27

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1120
- C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe
  C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe
  2⤵
  - Executes dropped EXE
  PID:1556

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
437.2MB

MD5
e28dc728bcb44d38dcf0a86f65c36c16

SHA1
b6a43232001077930f8948f14b5ff5eae0d88c15

SHA256
dd587093598e44409a387d8e2ad274433c26dd9168dae61484ef8f99a5b123af

SHA512
d0175f024ecaec60b2a089bc65fed46973582fa96e7047173935b4983bd723fe313a6daa491fe220dd1198d2ad23807b227bdfecaffdff4ca5bd3e7a24a332d6

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

Filesize
543.1MB

MD5
4c121bc2bf6e19e3926b380604ac5de7

SHA1
aa0d6cbd0f102127b1bc733462642b1e17f16940

SHA256
e4c14760980afe60c2d33d666d2d0fc3ad16ff90bbf48a810a8a89365bb13843

SHA512
86e032b6b5f5ab4effeb4cc69ffd66c143948d18dc609d10ffef095caea2c5433ff91a14d3a61b7b10161d3945ddcc972c07a8b56d9010df69976513ceca8150

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

Filesize
458.1MB

MD5
5fd5680699483d0aab5ddbbc1ec05eaf

SHA1
0d3b82cee9ccbb5f2550bac85c2b0f07abd65841

SHA256
99a835a8c8ffb4668bd3b767c33cd42034f2ae8c68b4ac702a83d12135761659

SHA512
32b971bfdab13785eb6527defb54871fb08125d9bca3e161d376701b325b434ef2fcff99f3d5089987c1a7439f5598f1ef04ef0465d6d27983b9df1f023c2c23

Download Submit
memory/1120-57-0x0000000000400000-0x0000000000803000-memory.dmp

Filesize
4.0MB

Download
memory/1120-58-0x0000000000400000-0x0000000000803000-memory.dmp

Filesize
4.0MB

Download
memory/1120-54-0x00000000020A0000-0x000000000224A000-memory.dmp

Filesize
1.7MB

Download
memory/1120-56-0x0000000002250000-0x0000000002620000-memory.dmp

Filesize
3.8MB

Download
memory/1120-55-0x00000000020A0000-0x000000000224A000-memory.dmp

Filesize
1.7MB

Download
memory/1120-64-0x0000000000400000-0x0000000000803000-memory.dmp

Filesize
4.0MB

Download
memory/1556-63-0x00000000021B0000-0x000000000235A000-memory.dmp

Filesize
1.7MB

Download
memory/1556-65-0x00000000021B0000-0x000000000235A000-memory.dmp

Filesize
1.7MB

Download
memory/1556-66-0x0000000002360000-0x0000000002730000-memory.dmp

Filesize
3.8MB

Download
memory/1556-67-0x0000000000400000-0x0000000000803000-memory.dmp

Filesize
4.0MB

Download
memory/1556-68-0x0000000000400000-0x0000000000803000-memory.dmp

Filesize
4.0MB

Download