b6345fbf16ff0492c1e6aed97ed3c3becb822994c7a39b6f6ef8377e91087393

Analysis

max time kernel
175s
max time network
84s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
07/12/2022, 02:57

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General

Target

b6345fbf16ff0492c1e6aed97ed3c3becb822994c7a39b6f6ef8377e91087393.exe
Size

80KB
MD5

7839de16f73b559df65a7167513fb117
SHA1

faf362449dd609e158285354755d497de6b775e8
SHA256

b6345fbf16ff0492c1e6aed97ed3c3becb822994c7a39b6f6ef8377e91087393
SHA512

43795853842db16e07a65c93f01f2e2e48bddc3558d4a0ce2d5fc4e37558421f3cd7642eabac798da4012238eda6016daa3e48ab42d4e0fc06f4c8f7e58ebc3e
SSDEEP

768:KJLCdnMWUvcJOb4abke1/B/uBJK0KVMfsRyRFBoytfDN/SBnGHbAEUDTb:KSUkJiIeZNbirbAVb

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	youpuu.exe

Executes dropped EXE 1 IoCs

pid	Process
2020	youpuu.exe

Loads dropped DLL 2 IoCs

pid	Process
1236	b6345fbf16ff0492c1e6aed97ed3c3becb822994c7a39b6f6ef8377e91087393.exe
1236	b6345fbf16ff0492c1e6aed97ed3c3becb822994c7a39b6f6ef8377e91087393.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\	youpuu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\youpuu = "C:\\Users\\Admin\\youpuu.exe"	youpuu.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2020	youpuu.exe
2020	youpuu.exe
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Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1236	b6345fbf16ff0492c1e6aed97ed3c3becb822994c7a39b6f6ef8377e91087393.exe
2020	youpuu.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1236 wrote to memory of 2020	1236	b6345fbf16ff0492c1e6aed97ed3c3becb822994c7a39b6f6ef8377e91087393.exe	28
PID 1236 wrote to memory of 2020	1236	b6345fbf16ff0492c1e6aed97ed3c3becb822994c7a39b6f6ef8377e91087393.exe	28
PID 1236 wrote to memory of 2020	1236	b6345fbf16ff0492c1e6aed97ed3c3becb822994c7a39b6f6ef8377e91087393.exe	28
PID 1236 wrote to memory of 2020	1236	b6345fbf16ff0492c1e6aed97ed3c3becb822994c7a39b6f6ef8377e91087393.exe	28

C:\Users\Admin\AppData\Local\Temp\b6345fbf16ff0492c1e6aed97ed3c3becb822994c7a39b6f6ef8377e91087393.exe
"C:\Users\Admin\AppData\Local\Temp\b6345fbf16ff0492c1e6aed97ed3c3becb822994c7a39b6f6ef8377e91087393.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1236
- C:\Users\Admin\youpuu.exe
  "C:\Users\Admin\youpuu.exe"
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:2020

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\youpuu.exe

Filesize
80KB

MD5
ba59759910dc9745859a7eaf092cb3a3

SHA1
81282b16750f6d4d501ef36de44bd5cff2559548

SHA256
0e8c7fea0de0962d7da2020c4491da9772e0c44595a2e1f141352ee90f336617

SHA512
eedd4ff85b07156d6068609cd5b29b9641c6f0821909bc3d917fa2d7011e0a467d58ca1117cac42d38c8e3edb7188eaad417569539cf45728da77f8df8987770

Download Submit
C:\Users\Admin\youpuu.exe

Filesize
80KB

MD5
ba59759910dc9745859a7eaf092cb3a3

SHA1
81282b16750f6d4d501ef36de44bd5cff2559548

SHA256
0e8c7fea0de0962d7da2020c4491da9772e0c44595a2e1f141352ee90f336617

SHA512
eedd4ff85b07156d6068609cd5b29b9641c6f0821909bc3d917fa2d7011e0a467d58ca1117cac42d38c8e3edb7188eaad417569539cf45728da77f8df8987770

Download Submit
\Users\Admin\youpuu.exe

Filesize
80KB

MD5
ba59759910dc9745859a7eaf092cb3a3

SHA1
81282b16750f6d4d501ef36de44bd5cff2559548

SHA256
0e8c7fea0de0962d7da2020c4491da9772e0c44595a2e1f141352ee90f336617

SHA512
eedd4ff85b07156d6068609cd5b29b9641c6f0821909bc3d917fa2d7011e0a467d58ca1117cac42d38c8e3edb7188eaad417569539cf45728da77f8df8987770

Download Submit
\Users\Admin\youpuu.exe

Filesize
80KB

MD5
ba59759910dc9745859a7eaf092cb3a3

SHA1
81282b16750f6d4d501ef36de44bd5cff2559548

SHA256
0e8c7fea0de0962d7da2020c4491da9772e0c44595a2e1f141352ee90f336617

SHA512
eedd4ff85b07156d6068609cd5b29b9641c6f0821909bc3d917fa2d7011e0a467d58ca1117cac42d38c8e3edb7188eaad417569539cf45728da77f8df8987770

Download Submit
memory/1236-56-0x0000000075991000-0x0000000075993000-memory.dmp

Filesize
8KB

Download