939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f

General

Target

939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
Size

149KB
MD5

5a4930ce9a47f49a081c6eaf80ad1300
SHA1

faa39d5579cec48eaa40e08c82d64938e0af6105
SHA256

939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f
SHA512

9aab812f7f4d58efdb208c580bdf06491d02b81958f99f9ae831e3cc95420342fd046eaa7c91c05ee5c1d9b312ebbbca2347e2ae4aacb3108dfff336d74dd65d
SSDEEP

3072:3bZEhqr8+IQ9r/I6iExwxEkcEck+RvosU9273mzQD7:3mqA+I4bmfcZvU9yWzO7

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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.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	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.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)	\??\U:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened (read-only)	\??\T:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened (read-only)	\??\R:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened (read-only)	\??\O:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened (read-only)	\??\M:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened (read-only)	\??\L:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened (read-only)	\??\G:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened (read-only)	\??\E:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened (read-only)	\??\Z:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened (read-only)	\??\W:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened (read-only)	\??\Q:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened (read-only)	\??\P:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened (read-only)	\??\I:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened (read-only)	\??\Y:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened (read-only)	\??\X:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened (read-only)	\??\F:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened (read-only)	\??\V:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened (read-only)	\??\S:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened (read-only)	\??\N:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened (read-only)	\??\K:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened (read-only)	\??\J:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened (read-only)	\??\H:	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.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	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
File opened for modification	C:\Documents and Settings\Admin\Local Settings\Application Data\Microsoft\CD Burning\autorun.inf	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.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	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2188	3664	WerFault.exe	81

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3664	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
3664	939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe

C:\Users\Admin\AppData\Local\Temp\939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.exe
"C:\Users\Admin\AppData\Local\Temp\939b7e476cf9610fd699815e26b60ba5a8dbdce1a89359a9969370413096864f.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:3664
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3664 -s 736
  2⤵
  - Program crash
  PID:2188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3664 -ip 3664
1⤵
PID:4120

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

1

T1082

Lateral Movement

Replication Through Removable Media

1

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3664-132-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3664-133-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads