2d8cecbdc9db787e4231381ad2f33dc0a0652a594d4420289f550e3d2f2f08d2

Analysis

max time kernel
136s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
15-01-2024 03:23

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General

Target

5c0195dcf62ea999de483648aa940db6.exe
Size

33KB
MD5

5c0195dcf62ea999de483648aa940db6
SHA1

98931034ef9a3ca59fb4323075fb1e3172affe80
SHA256

2d8cecbdc9db787e4231381ad2f33dc0a0652a594d4420289f550e3d2f2f08d2
SHA512

57bf02259753b879111fb228dc2a8cce3a4177cd2a1fbd05b41c90420245de353d3417c1b722eccc746f7ba7786a45fe75665d954fb009a89a8d7f2219fde4e2
SSDEEP

768:f74VjExo7S6lIc0wms0bKkPz/EmxCiuN/u73Nk8okt:f74Wo+FNDmE/Peujz

Score

7^/10

persistence

Malware Config

Signatures

Checks computer location settings 2 TTPs 2 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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	sys32.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	5c0195dcf62ea999de483648aa940db6.exe

Executes dropped EXE 2 IoCs

pid	Process
452	sys32.exe
4528	sys32.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\Winjava vil = "sys32.exe"	5c0195dcf62ea999de483648aa940db6.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\WINDOWS\SysWOW64\sys32.exe	5c0195dcf62ea999de483648aa940db6.exe
File created	C:\WINDOWS\SysWOW64\sys32.exe	sys32.exe
File created	C:\WINDOWS\SysWOW64\sys32.exe	5c0195dcf62ea999de483648aa940db6.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1944	4528	WerFault.exe	90

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 764 wrote to memory of 452	764	5c0195dcf62ea999de483648aa940db6.exe	89
PID 764 wrote to memory of 452	764	5c0195dcf62ea999de483648aa940db6.exe	89
PID 764 wrote to memory of 452	764	5c0195dcf62ea999de483648aa940db6.exe	89
PID 452 wrote to memory of 4528	452	sys32.exe	90
PID 452 wrote to memory of 4528	452	sys32.exe	90
PID 452 wrote to memory of 4528	452	sys32.exe	90

C:\Users\Admin\AppData\Local\Temp\5c0195dcf62ea999de483648aa940db6.exe
"C:\Users\Admin\AppData\Local\Temp\5c0195dcf62ea999de483648aa940db6.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:764
- C:\WINDOWS\SysWOW64\sys32.exe
  "C:\WINDOWS\SYSTEM32\sys32.exe" qwerC:\USERS\ADMIN\APPDATA\LOCAL\TEMP\5C0195DCF62EA999DE483648AA940DB6.EXE
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:452
- - C:\WINDOWS\SysWOW64\sys32.exe
    "C:\WINDOWS\SYSTEM32\sys32.exe" qwerC:\WINDOWS\SYSWOW64\SYS32.EXE
    3⤵
    - Executes dropped EXE
    PID:4528
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4528 -s 188
      4⤵
      Program crash
      PID:1944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4528 -ip 4528
1⤵
PID:2616

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

Replay Monitor

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Downloads

C:\Windows\SysWOW64\sys32.exe

Filesize
33KB

MD5
5c0195dcf62ea999de483648aa940db6

SHA1
98931034ef9a3ca59fb4323075fb1e3172affe80

SHA256
2d8cecbdc9db787e4231381ad2f33dc0a0652a594d4420289f550e3d2f2f08d2

SHA512
57bf02259753b879111fb228dc2a8cce3a4177cd2a1fbd05b41c90420245de353d3417c1b722eccc746f7ba7786a45fe75665d954fb009a89a8d7f2219fde4e2

Download Submit
memory/452-14-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/764-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/764-1-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/764-10-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4528-12-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4528-13-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads