b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c | Triage

Analysis

max time kernel
95s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
07/11/2022, 16:39 UTC

Sharing

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General

Target

b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
Size

151KB
MD5

0e4fc68ce6e942038f3dc9d3376f3179
SHA1

4fda41f3189451e6e733584f5988abd60cf501ce
SHA256

b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c
SHA512

7b7283b683dc90b6dd0905c5a621947452c2edb1d73e48507961f3dba7fa23777d376aa46d87955d572fbc7639dedc224e286992f58f5b60fdc2481064c751f9
SSDEEP

3072:DLm+P8VzL/p/LwXRtWyOXLvxgWQS84IBNGqSd/:3B89h0RtWyGjxgWvsNGR/

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

Hidden Files and Directories

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\software\WOW6432Node\Microsoft\Windows\CurrentVersion\run	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe

Enumerates connected drives 3 TTPs 22 IoCs

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

Query Registry

Peripheral Device Discovery

System Information Discovery

description	ioc	Process
File opened (read-only)	\??\U:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened (read-only)	\??\S:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened (read-only)	\??\Q:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened (read-only)	\??\O:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened (read-only)	\??\N:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened (read-only)	\??\I:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened (read-only)	\??\H:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened (read-only)	\??\E:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened (read-only)	\??\Z:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened (read-only)	\??\Y:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened (read-only)	\??\W:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened (read-only)	\??\M:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened (read-only)	\??\G:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened (read-only)	\??\X:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened (read-only)	\??\T:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened (read-only)	\??\R:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened (read-only)	\??\P:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened (read-only)	\??\K:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened (read-only)	\??\J:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened (read-only)	\??\F:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened (read-only)	\??\V:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened (read-only)	\??\L:	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe

Drops autorun.inf file 1 TTPs 2 IoCs

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

Replication Through Removable Media

description	ioc	Process
File opened for modification	C:\autorun.inf	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
File opened for modification	C:\Documents and Settings\Admin\Local Settings\Application Data\Microsoft\CD Burning\autorun.inf	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.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	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4912	2004	WerFault.exe	78

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2004	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
2004	b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe

C:\Users\Admin\AppData\Local\Temp\b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe
"C:\Users\Admin\AppData\Local\Temp\b51b254b54c4ef3c501cb7516aa6971532b7bf8b86b331cefa77703a181f834c.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Adds Run key to start application
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
PID:2004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2004 -s 724
  2⤵
  - Program crash
  PID:4912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2004 -ip 2004
1⤵
PID:3448

Network

No results found

67.27.154.126:80

322 B
7
67.27.154.126:80

322 B
7
20.189.173.15:443

322 B
7
67.27.154.126:80

322 B
7
67.27.154.126:80

322 B
7
67.27.154.126:80

322 B
7

No results found

MITRE ATT&CK Enterprise v6

Initial Access

Replication Through Removable Media

Execution

Persistence

Hidden Files and Directories

Registry Run Keys / Startup Folder

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

Lateral Movement

Replication Through Removable Media

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2004-132-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2004-133-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download