f013d74de30b0a474c207c5c1b8d9beae8da3d8d3e9ee077b22acbfc4a38b098

Analysis

max time kernel
142s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04-02-2024 15:12

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General

Target

8f792f36df503f1b5cb8fdfae104dea5.exe
Size

57KB
MD5

8f792f36df503f1b5cb8fdfae104dea5
SHA1

00de46db741ea2d07958b77a32ebf536ca82df52
SHA256

f013d74de30b0a474c207c5c1b8d9beae8da3d8d3e9ee077b22acbfc4a38b098
SHA512

e587e86b02013384f946481b90078fff8f79da3ab2cf7aa3aaeebc587905fd44da692d520554812e28316d3be00320d17c90dc2aad22dfcdefe5fd21fc63b721
SSDEEP

768:fmC5luOEa7NeVM39NE1XHeDqRrZ9X3np1UBVUxAO0X4sAZSOQB/gDYyf:F7NuMvm+69XbUgxw8UFgD3

Score

8^/10

persistence

Malware Config

Signatures

Sets file execution options in registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\egui.exe	8f792f36df503f1b5cb8fdfae104dea5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\egui.exe\Debugger = "services.exe"	8f792f36df503f1b5cb8fdfae104dea5.exe

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-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	8f792f36df503f1b5cb8fdfae104dea5.exe

Executes dropped EXE 1 IoCs

pid	Process
3980	~e57b28c.tmp

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

System Information Discovery
T1082

Kills process with taskkill 2 IoCs

evasion

pid	Process
3944	taskkill.exe
976	taskkill.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1804	8f792f36df503f1b5cb8fdfae104dea5.exe
1804	8f792f36df503f1b5cb8fdfae104dea5.exe
1804	8f792f36df503f1b5cb8fdfae104dea5.exe
1804	8f792f36df503f1b5cb8fdfae104dea5.exe
1804	8f792f36df503f1b5cb8fdfae104dea5.exe
1804	8f792f36df503f1b5cb8fdfae104dea5.exe
1804	8f792f36df503f1b5cb8fdfae104dea5.exe
1804	8f792f36df503f1b5cb8fdfae104dea5.exe
3980	~e57b28c.tmp
3980	~e57b28c.tmp
3980	~e57b28c.tmp
3980	~e57b28c.tmp
3980	~e57b28c.tmp
3980	~e57b28c.tmp

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
664	Process not Found

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3944	taskkill.exe
Token: SeDebugPrivilege	976	taskkill.exe
Token: SeDebugPrivilege	1804	8f792f36df503f1b5cb8fdfae104dea5.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1804 wrote to memory of 3944	1804	8f792f36df503f1b5cb8fdfae104dea5.exe	84
PID 1804 wrote to memory of 3944	1804	8f792f36df503f1b5cb8fdfae104dea5.exe	84
PID 1804 wrote to memory of 3944	1804	8f792f36df503f1b5cb8fdfae104dea5.exe	84
PID 1804 wrote to memory of 976	1804	8f792f36df503f1b5cb8fdfae104dea5.exe	89
PID 1804 wrote to memory of 976	1804	8f792f36df503f1b5cb8fdfae104dea5.exe	89
PID 1804 wrote to memory of 976	1804	8f792f36df503f1b5cb8fdfae104dea5.exe	89
PID 1804 wrote to memory of 3980	1804	8f792f36df503f1b5cb8fdfae104dea5.exe	96
PID 1804 wrote to memory of 3980	1804	8f792f36df503f1b5cb8fdfae104dea5.exe	96
PID 1804 wrote to memory of 3980	1804	8f792f36df503f1b5cb8fdfae104dea5.exe	96

C:\Users\Admin\AppData\Local\Temp\8f792f36df503f1b5cb8fdfae104dea5.exe
"C:\Users\Admin\AppData\Local\Temp\8f792f36df503f1b5cb8fdfae104dea5.exe"
1⤵
- Sets file execution options in registry
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1804
- C:\Windows\SysWOW64\taskkill.exe
  "C:\Windows\System32\taskkill.exe" /f /im ekrn.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3944
- C:\Windows\SysWOW64\taskkill.exe
  "C:\Windows\System32\taskkill.exe" /f /im egui.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:976
- C:\Users\Admin\AppData\Local\Temp\~e57b28c.tmp
  C:\Users\Admin\AppData\Local\Temp\~e57b28c.tmp
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:3980

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:\Users\Admin\AppData\Local\Temp\~e57b28c.tmp

Filesize
6KB

MD5
0457e5f13c0af5999ce33b068f308e8b

SHA1
d60622cb3f54777ebd94b5fa3fb33e918a040caa

SHA256
de6c539816fb97208b333f8ebecfc341f4f113d20b4c8d535021e1ff10136821

SHA512
3728adc3d69956db3b3bcd275d1dad5f79bd9264b64c59c4dedcbe7d14db4ff55c54b34849cca590afc17207b54d712e324a858c4e56e9b70479a929ef43602e

Download Submit
memory/1804-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

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