a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c

General

Target

a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
Size

71KB
MD5

4c66eb06922dbf7c1945d479a3e3d510
SHA1

a46950d2d39ba2cd7dc61304fd60008b8aad82f9
SHA256

a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c
SHA512

4aa11c7aaeadfaccf6855de2d69f55a261073fa02bfbb9232386cd42327e90a26c2d8b0a51b82a5c2d58989ee1b0e551c1c3721b8e7969c6392ce012478439d2
SSDEEP

1536:wr6XUjM3QURjlLzBPhrqmt1Sa6sXD1eEkphz8qpNni:wTjMBRjlLzBheqU9jNi

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

Processes:

a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\software\WOW6432Node\Microsoft\Windows\CurrentVersion\run	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.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

Processes:

a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe

description	ioc	process
File opened (read-only)	\??\X:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened (read-only)	\??\V:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened (read-only)	\??\U:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened (read-only)	\??\N:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened (read-only)	\??\H:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened (read-only)	\??\G:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened (read-only)	\??\J:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened (read-only)	\??\Z:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened (read-only)	\??\W:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened (read-only)	\??\S:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened (read-only)	\??\P:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened (read-only)	\??\M:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened (read-only)	\??\L:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened (read-only)	\??\K:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened (read-only)	\??\E:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened (read-only)	\??\I:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened (read-only)	\??\Y:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened (read-only)	\??\T:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened (read-only)	\??\R:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened (read-only)	\??\Q:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened (read-only)	\??\O:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened (read-only)	\??\F:	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.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

Processes:

a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe

description	ioc	process
File opened for modification	C:\autorun.inf	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
File opened for modification	C:\Documents and Settings\Admin\Local Settings\Application Data\Microsoft\CD Burning\autorun.inf	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe

Drops file in Program Files directory 1 IoCs

Processes:

a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe

description	ioc	process
File opened for modification	C:\PROGRAM FILES (X86)\ADOBE\ACROBAT READER DC\READER\ACRORD32.EXE	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2572 788 WerFault.exe a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe

pid	pid_target	process	target process
2572	788	WerFault.exe	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe

pid	process
788	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
788	a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe

C:\Users\Admin\AppData\Local\Temp\a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.exe
"C:\Users\Admin\AppData\Local\Temp\a37f1bff9390488d5a74ea7a3f19d8ba1a1156fe69fc34b43965905c91a4cb2c.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:788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 788 -s 728
2⤵
- Program crash
PID:2572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 788 -ip 788
1⤵
PID:4100

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/788-132-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/788-133-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads