8fc81ee53904ca3ceadc40f2dbb7b2d0cfc926b0408d06effcd53b30a3711aba

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/12/2023, 12:55

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General

Target

2018dd2157d9dcdefeadf3d9d8acc853.exe
Size

157KB
MD5

2018dd2157d9dcdefeadf3d9d8acc853
SHA1

d0551d394beb5cb762e54a8d2864fe11e3d7d4a9
SHA256

8fc81ee53904ca3ceadc40f2dbb7b2d0cfc926b0408d06effcd53b30a3711aba
SHA512

2c9ec5ca045b2886126286e28f5d0bf1cf725f3e5e440830b44056de68248cfdb79eb70aa6bfdc20a0a65946355fe583039cb0c3a73fdaddb433a0272e4f77ae
SSDEEP

1536:+atKGMfWqzs7hWvNljt7XdzchJzpVzNsysqwhqYKGQuObviT+DkNBvd7ZqrKC8ti:+ewfWqA7kvN5phKDBKyugwfNv1bfMiu

Score

10^/10

evasion

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	2018dd2157d9dcdefeadf3d9d8acc853.exe

Enumerates connected drives 3 TTPs 21 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\U:	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened (read-only)	\??\S:	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened (read-only)	\??\L:	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened (read-only)	\??\J:	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened (read-only)	\??\X:	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened (read-only)	\??\R:	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened (read-only)	\??\P:	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened (read-only)	\??\W:	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened (read-only)	\??\V:	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened (read-only)	\??\O:	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened (read-only)	\??\K:	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened (read-only)	\??\H:	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened (read-only)	\??\G:	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened (read-only)	\??\E:	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened (read-only)	\??\Z:	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened (read-only)	\??\Y:	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened (read-only)	\??\T:	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened (read-only)	\??\Q:	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened (read-only)	\??\N:	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened (read-only)	\??\M:	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened (read-only)	\??\I:	2018dd2157d9dcdefeadf3d9d8acc853.exe

Drops autorun.inf file 1 TTPs 3 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File opened for modification	C:\autorun.inf	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened for modification	C:\Documents and Settings\Admin\Local Settings\Application Data\Microsoft\CD Burning\autorun.inf	2018dd2157d9dcdefeadf3d9d8acc853.exe
File opened for modification	F:\autorun.inf	2018dd2157d9dcdefeadf3d9d8acc853.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\PROGRAM FILES (X86)\ADOBE\ACROBAT READER DC\READER\ACRORD32.EXE	2018dd2157d9dcdefeadf3d9d8acc853.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
4728	864	WerFault.exe	14

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000_Classes\Local Settings	2018dd2157d9dcdefeadf3d9d8acc853.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
864	2018dd2157d9dcdefeadf3d9d8acc853.exe
864	2018dd2157d9dcdefeadf3d9d8acc853.exe

C:\Users\Admin\AppData\Local\Temp\2018dd2157d9dcdefeadf3d9d8acc853.exe
"C:\Users\Admin\AppData\Local\Temp\2018dd2157d9dcdefeadf3d9d8acc853.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in Program Files directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:864
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 864 -s 1200
  2⤵
  - Program crash
  PID:4728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 864 -ip 864
1⤵
PID:3756

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:1216

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Replication Through Removable Media

T1091

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/864-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/864-28-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download