b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c

General

Target

b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
Size

157KB
MD5

a73cf3e0f5ba0f000bf881ca955e3204
SHA1

56c2b8605f43717a18addb90982b51c8b5e9152f
SHA256

b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c
SHA512

64f486c0902b966005d8e751eac8cec47b627bdcd4851bd51c0ae2803e2e11c47ff59dc6291c6cf215313448cca20e0b54a6b160f492566a4f6524bb16ef77a5
SSDEEP

1536:4V8x0vGtUBqgbDUL/0P8gl9kMtIJPslQMGnhshBnpfzLzFoyPjeSVOzB9yWyLDNh:b09qiDr8glW2lMhszFTmyEByLpxW+sZI

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-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.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	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.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)	\??\X:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened (read-only)	\??\R:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened (read-only)	\??\Q:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened (read-only)	\??\M:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened (read-only)	\??\K:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened (read-only)	\??\I:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened (read-only)	\??\H:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened (read-only)	\??\W:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened (read-only)	\??\S:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened (read-only)	\??\P:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened (read-only)	\??\G:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened (read-only)	\??\E:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened (read-only)	\??\V:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened (read-only)	\??\U:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened (read-only)	\??\T:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened (read-only)	\??\O:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened (read-only)	\??\N:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened (read-only)	\??\L:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened (read-only)	\??\F:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened (read-only)	\??\Z:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened (read-only)	\??\Y:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened (read-only)	\??\J:	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.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	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
File opened for modification	C:\Documents and Settings\Admin\Local Settings\Application Data\Microsoft\CD Burning\autorun.inf	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.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	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1056	3544	WerFault.exe	49

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3544	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
3544	b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe

C:\Users\Admin\AppData\Local\Temp\b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.exe
"C:\Users\Admin\AppData\Local\Temp\b97b6e6e94474ff1085c7f6af441930d2e8229627e89e910363313164aa00f7c.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
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:3544
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3544 -s 1184
  2⤵
  - Program crash
  PID:1056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3544 -ip 3544
1⤵
PID:3320

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:1244

Network

MITRE ATT&CK Enterprise v6

Initial Access

Replication Through Removable Media

1

T1091

Execution

Persistence

Hidden Files and Directories

1

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

2

T1082

Lateral Movement

Replication Through Removable Media

1

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3544-132-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/3544-133-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads