4ea285f4c769bc760c21841257e912e057cda123cfc92771b45763c3edad8535

General

Target

4b1c9143d9066dfff5b06a5f534513c6.exe
Size

133KB
MD5

4b1c9143d9066dfff5b06a5f534513c6
SHA1

d7537741b874815e6ef41d9e54f609bac3446f5e
SHA256

4ea285f4c769bc760c21841257e912e057cda123cfc92771b45763c3edad8535
SHA512

cc8f7ee229a8f9e1630f026401a065a1379f52820f8aea0a02a7f0ac87b9b2fc0a51eabdff37962cc7a406f0f175f356b07ccbd7a26d2531438d0d6aec9c4292
SSDEEP

3072:Gas0ck3YsxEotlhRRAezfcAIHdtFW3znx6h1aD0B5wA+wN4mBl8sQ:GgbbJfDI9Ax6h1nbdfymUsQ

Score

7^/10

upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2236	4b1c9143d9066dfff5b06a5f534513c6.exe

Executes dropped EXE 1 IoCs

pid	Process
2236	4b1c9143d9066dfff5b06a5f534513c6.exe

Loads dropped DLL 1 IoCs

pid	Process
1728	4b1c9143d9066dfff5b06a5f534513c6.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1728-0-0x0000000000400000-0x0000000000486000-memory.dmp	upx
behavioral1/files/0x0008000000012270-11.dat	upx
behavioral1/memory/1728-13-0x0000000000190000-0x0000000000216000-memory.dmp	upx
behavioral1/memory/2236-17-0x0000000000400000-0x0000000000486000-memory.dmp	upx
behavioral1/files/0x0008000000012270-16.dat	upx

Modifies system certificate store 2 TTPs 4 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000\Software\Microsoft\SystemCertificates\CA\Certificates\A053375BFE84E8B748782C7CEE15827A6AF5A405	4b1c9143d9066dfff5b06a5f534513c6.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000\Software\Microsoft\SystemCertificates\CA\Certificates\A053375BFE84E8B748782C7CEE15827A6AF5A405\Blob = 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	4b1c9143d9066dfff5b06a5f534513c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8	4b1c9143d9066dfff5b06a5f534513c6.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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	4b1c9143d9066dfff5b06a5f534513c6.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1728	4b1c9143d9066dfff5b06a5f534513c6.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1728	4b1c9143d9066dfff5b06a5f534513c6.exe
2236	4b1c9143d9066dfff5b06a5f534513c6.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 2236	1728	4b1c9143d9066dfff5b06a5f534513c6.exe	17
PID 1728 wrote to memory of 2236	1728	4b1c9143d9066dfff5b06a5f534513c6.exe	17
PID 1728 wrote to memory of 2236	1728	4b1c9143d9066dfff5b06a5f534513c6.exe	17
PID 1728 wrote to memory of 2236	1728	4b1c9143d9066dfff5b06a5f534513c6.exe	17

C:\Users\Admin\AppData\Local\Temp\4b1c9143d9066dfff5b06a5f534513c6.exe
"C:\Users\Admin\AppData\Local\Temp\4b1c9143d9066dfff5b06a5f534513c6.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Users\Admin\AppData\Local\Temp\4b1c9143d9066dfff5b06a5f534513c6.exe
  C:\Users\Admin\AppData\Local\Temp\4b1c9143d9066dfff5b06a5f534513c6.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Modifies system certificate store
  - Suspicious use of UnmapMainImage
  PID:2236

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\4b1c9143d9066dfff5b06a5f534513c6.exe

Filesize
133KB

MD5
35a61a5064ff2a3f9c0ae50efd8a4522

SHA1
b1b6130ea73618cbef9e06476b37137a72109a4f

SHA256
04d58a3a5b90872685a8abd12e692e66505e86469bc04cd172fc8521db09cbbc

SHA512
a13e7bd36ace78ab4c716e92ceb6dfcc5487920d71808bcdb8441708a179f6caa86c8852466b97d174db57797d29c597b8c02d9a2ef03af4e4ef266f1653e82f

Download Submit
\Users\Admin\AppData\Local\Temp\4b1c9143d9066dfff5b06a5f534513c6.exe

Filesize
52KB

MD5
f55668e831e95db24fd9af076b24b28c

SHA1
f71fb19b991d09dbc7023aa3f705d2cd455ac7fa

SHA256
cb3b6566afd44839215980cc47c864f2466f82122cf4a9573e9d4e8fa65b3cdb

SHA512
bfacad0fc197e84a492b3ba4bc25f37b5d58466021c2348bd45a1229a1acc4e303b4db2c2a9640af4725080101920ed784166eb10f645f43ef46147a82e8941c

Download Submit
memory/1728-0-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1728-2-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/1728-1-0x0000000000150000-0x0000000000171000-memory.dmp

Filesize
132KB

Download
memory/1728-13-0x0000000000190000-0x0000000000216000-memory.dmp

Filesize
536KB

Download
memory/1728-15-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2236-17-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/2236-24-0x00000000001E0000-0x0000000000201000-memory.dmp

Filesize
132KB

Download
memory/2236-43-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download

Analysis

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