a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb

General

Target

a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
Size

71KB
MD5

27224fad054089ffb44416232c299020
SHA1

54cf6a7b503eccd5d5d78ef8eca4c33b9767eefc
SHA256

a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb
SHA512

f8c80552a7e9c5aa369a0cec3e56b446ab4a15a0bf7f29eea83439977b975d8edbcf7418b1fc96407410f9e5c94add504b2d51ebbe954035df38e93058bb15a7
SSDEEP

1536:QKuOXR2esnjlRTN3FzJnPOT1X4ZwFc3pL+l8/s:DuOXR2NjjfJnEiZPM

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\software\Wow6432Node\Microsoft\Windows\CurrentVersion\run	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.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

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\N:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened (read-only)	\??\I:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened (read-only)	\??\F:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened (read-only)	\??\V:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened (read-only)	\??\Q:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened (read-only)	\??\P:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened (read-only)	\??\K:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened (read-only)	\??\H:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened (read-only)	\??\E:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened (read-only)	\??\Z:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened (read-only)	\??\X:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened (read-only)	\??\W:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened (read-only)	\??\U:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened (read-only)	\??\S:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened (read-only)	\??\R:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened (read-only)	\??\O:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened (read-only)	\??\M:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened (read-only)	\??\Y:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened (read-only)	\??\T:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened (read-only)	\??\L:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened (read-only)	\??\J:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened (read-only)	\??\G:	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe

Drops autorun.inf file 1 TTPs 2 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	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened for modification	C:\Documents and Settings\Admin\Local Settings\Application Data\Microsoft\CD Burning\autorun.inf	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe

Drops file in Program Files directory 8 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\OIS.EXE	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\ONENOTE.EXE	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\OUTLOOK.EXE	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\EXCEL.EXE	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\GROOVE.EXE	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\INFOPATH.EXE	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\MSACCESS.EXE	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\MSPUB.EXE	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1528	1252	WerFault.exe	20

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1252	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1252 wrote to memory of 1528	1252	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe	28
PID 1252 wrote to memory of 1528	1252	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe	28
PID 1252 wrote to memory of 1528	1252	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe	28
PID 1252 wrote to memory of 1528	1252	a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe	28

C:\Users\Admin\AppData\Local\Temp\a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe
"C:\Users\Admin\AppData\Local\Temp\a35db4dfd6864817665b9638ee3770ad04f5d3d3aa897b2774740f140dc3b7bb.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Modifies visiblity of hidden/system files in Explorer
- Adds Run key to start application
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1252
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1252 -s 320
  2⤵
  - Program crash
  PID:1528

Network

MITRE ATT&CK Enterprise v6

Initial Access

Replication Through Removable Media

1

T1091

Execution

Persistence

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Replication Through Removable Media

1

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1252-54-0x0000000076381000-0x0000000076383000-memory.dmp

Filesize
8KB

Download
memory/1252-55-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads