4bfed04325d85ebd559dc23df3eccd0356764a56e84834d4ffb40e1fc8765c2b

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19/12/2023, 12:35

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General

Target

2499c3db53e862723d74f2a189c0097c.exe
Size

193KB
MD5

2499c3db53e862723d74f2a189c0097c
SHA1

7e9731a00818923c6d26c8fc981cb07392bbecb6
SHA256

4bfed04325d85ebd559dc23df3eccd0356764a56e84834d4ffb40e1fc8765c2b
SHA512

b4046f64a991436932c36dbf94704019e50c2fab678fc9a85d78a655bcc43b5239776a6a2c9102d13c83aafb128ee5927a056ac39820c66136f68a5ad640ca31
SSDEEP

3072:/cT9g8immW6Pozkk2eKs/CSr2nQ/E2S5ny+bF2u1I+ddDK7Hlq/B8w:o68i3odBiTl2+TCU/9

Score

7^/10

persistence

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	cmd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft I Service = "C:\\Windows\\winhash_up.exe /REGstart"	2499c3db53e862723d74f2a189c0097c.exe

Drops file in Windows directory 12 IoCs

description	ioc	Process
File created	C:\Windows\SHARE_TEMP\Icon12.ico	2499c3db53e862723d74f2a189c0097c.exe
File created	C:\Windows\SHARE_TEMP\Icon14.ico	2499c3db53e862723d74f2a189c0097c.exe
File created	C:\Windows\bugMAKER.bat	2499c3db53e862723d74f2a189c0097c.exe
File created	C:\Windows\winhash_up.exe	2499c3db53e862723d74f2a189c0097c.exe
File created	C:\Windows\SHARE_TEMP\Icon2.ico	2499c3db53e862723d74f2a189c0097c.exe
File created	C:\Windows\SHARE_TEMP\Icon5.ico	2499c3db53e862723d74f2a189c0097c.exe
File created	C:\Windows\SHARE_TEMP\Icon10.ico	2499c3db53e862723d74f2a189c0097c.exe
File created	C:\Windows\SHARE_TEMP\Icon7.ico	2499c3db53e862723d74f2a189c0097c.exe
File created	C:\Windows\winhash_up.exez	2499c3db53e862723d74f2a189c0097c.exe
File opened for modification	C:\Windows\winhash_up.exez	2499c3db53e862723d74f2a189c0097c.exe
File created	C:\Windows\SHARE_TEMP\Icon3.ico	2499c3db53e862723d74f2a189c0097c.exe
File created	C:\Windows\SHARE_TEMP\Icon6.ico	2499c3db53e862723d74f2a189c0097c.exe

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1532	cmd.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4052 wrote to memory of 1532	4052	2499c3db53e862723d74f2a189c0097c.exe	90
PID 4052 wrote to memory of 1532	4052	2499c3db53e862723d74f2a189c0097c.exe	90
PID 4052 wrote to memory of 1532	4052	2499c3db53e862723d74f2a189c0097c.exe	90

C:\Users\Admin\AppData\Local\Temp\2499c3db53e862723d74f2a189c0097c.exe
"C:\Users\Admin\AppData\Local\Temp\2499c3db53e862723d74f2a189c0097c.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4052
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Windows\bugMAKER.bat
  2⤵
  - Checks computer location settings
  - Suspicious use of SetWindowsHookEx
  PID:1532

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\bugMAKER.bat

Filesize
76B

MD5
88e6831bc74fa9084b236c451a9b48a9

SHA1
a9617be26b55ad8a071fba689997603a2fd85882

SHA256
95832e11127b572949db3c5bee29fa72f682c4808d360435bdb6a2a20a93ab80

SHA512
bf4962a79c8a639e8eb0b847f4d69bb3b56cd9ab404421ea0561b7b3f64f8bc5c419fffb20b14f1f98d91d3ba6bbc8b0d0f325dc34331c3835db5c04db4de463

Download Submit
memory/4052-24-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads