83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836

General

Target

83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
Size

151KB
MD5

79b9a6f73b82fe62a8f1e23a6e585031
SHA1

b2135f883dded2aba78829237457454926967f82
SHA256

83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836
SHA512

58e698bfb9613c3b8ad1425229ad6f0acffadf33afd8bad73120612aa9deebcbe7b481d4032a737c908bac1ded324b32f42bcb731e95b7fa77b075cebcc2d5f1
SSDEEP

3072:OZ1UE7Zk06M6fjScmUdt+LPGvtEsaV2n2Az5VqoHAE9/V:OZpL6MEjw+aVqbz59V

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:

83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\software\WOW6432Node\Microsoft\Windows\CurrentVersion\run	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.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:

83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe

description	ioc	process
File opened (read-only)	\??\R:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened (read-only)	\??\P:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened (read-only)	\??\O:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened (read-only)	\??\M:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened (read-only)	\??\F:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened (read-only)	\??\E:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened (read-only)	\??\Z:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened (read-only)	\??\V:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened (read-only)	\??\U:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened (read-only)	\??\S:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened (read-only)	\??\Q:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened (read-only)	\??\G:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened (read-only)	\??\W:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened (read-only)	\??\L:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened (read-only)	\??\K:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened (read-only)	\??\J:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened (read-only)	\??\I:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened (read-only)	\??\Y:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened (read-only)	\??\X:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened (read-only)	\??\T:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened (read-only)	\??\N:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened (read-only)	\??\H:	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.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:

83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe

description	ioc	process
File opened for modification	C:\autorun.inf	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
File opened for modification	C:\Documents and Settings\Admin\Local Settings\Application Data\Microsoft\CD Burning\autorun.inf	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe

Drops file in Program Files directory 1 IoCs

Processes:

83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe

description	ioc	process
File opened for modification	C:\PROGRAM FILES (X86)\ADOBE\ACROBAT READER DC\READER\ACRORD32.EXE	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3040 2748 WerFault.exe 83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe

pid	pid_target	process	target process
3040	2748	WerFault.exe	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

winword.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	winword.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	winword.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	winword.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

winword.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	winword.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	winword.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	winword.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

winword.exe

pid process

2536 winword.exe
2536 winword.exe

pid	process
2536	winword.exe
2536	winword.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe

pid	process
2748	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
2748	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe

Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

winword.exe

pid process

2536 winword.exe
2536 winword.exe
2536 winword.exe
2536 winword.exe
2536 winword.exe
2536 winword.exe

pid	process
2536	winword.exe
2536	winword.exe
2536	winword.exe
2536	winword.exe
2536	winword.exe
2536	winword.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe

description	pid	process	target process
PID 2748 wrote to memory of 2536	2748	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe	winword.exe
PID 2748 wrote to memory of 2536	2748	83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe	winword.exe

C:\Users\Admin\AppData\Local\Temp\83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.exe
"C:\Users\Admin\AppData\Local\Temp\83f84f525ea9206de02d539c6be595eaa57b26a7e7ce46602c836ca96c938836.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
- Suspicious use of WriteProcessMemory
PID:2748
- C:\Program Files\Microsoft Office\Root\Office16\winword.exe
  "C:\Program Files\Microsoft Office\Root\Office16\winword.exe"
  2⤵
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of SetWindowsHookEx
  PID:2536
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2748 -s 712
  2⤵
  - Program crash
  PID:3040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2748 -ip 2748
1⤵
PID:2008

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

3

T1082

Lateral Movement

Replication Through Removable Media

1

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2536-138-0x00007FFD55B10000-0x00007FFD55B20000-memory.dmp

Filesize
64KB

Download
memory/2536-140-0x00007FFD531B0000-0x00007FFD531C0000-memory.dmp

Filesize
64KB

Download
memory/2536-134-0x00007FFD55B10000-0x00007FFD55B20000-memory.dmp

Filesize
64KB

Download
memory/2536-135-0x00007FFD55B10000-0x00007FFD55B20000-memory.dmp

Filesize
64KB

Download
memory/2536-136-0x00007FFD55B10000-0x00007FFD55B20000-memory.dmp

Filesize
64KB

Download
memory/2536-137-0x00007FFD55B10000-0x00007FFD55B20000-memory.dmp

Filesize
64KB

Download
memory/2536-133-0x0000000000000000-mapping.dmp

Download
memory/2536-146-0x00007FFD55B10000-0x00007FFD55B20000-memory.dmp

Filesize
64KB

Download
memory/2536-143-0x00007FFD55B10000-0x00007FFD55B20000-memory.dmp

Filesize
64KB

Download
memory/2536-141-0x00007FFD531B0000-0x00007FFD531C0000-memory.dmp

Filesize
64KB

Download
memory/2536-145-0x00007FFD55B10000-0x00007FFD55B20000-memory.dmp

Filesize
64KB

Download
memory/2536-144-0x00007FFD55B10000-0x00007FFD55B20000-memory.dmp

Filesize
64KB

Download
memory/2748-139-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2748-132-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads