af9e8f301a3677b457345921d7ee765a842eceb7df107714eaffc6193bfc6bbe

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
12-02-2024 07:56

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General

Target

linux_hive.elf
Size

2.3MB
MD5

56075e7c63b3f9f612cde6187d4a7877
SHA1

1bcfa979b7b9044ba5ce5c006bd26b0bdbeb8464
SHA256

12389b8af28307fd09fe080fd89802b4e616ed4c961f464f95fdb4b3f0aaf185
SHA512

7df68e37b3c2e7ce197f0d8736d06adf808343fe2d638bcd3e0f285968e1365c06b33157c6e5816b9fa9362e6adc262d3d2da45d3d1a38efb7e2ce980fce8b80
SSDEEP

49152:TzVcrxrb/TGvO90dL3BmAFd4A64nsfJbJ5PhTZDknzImQXNqw0Xfgg778lwQJKTS:TcbP/kB30JKT

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 9 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\elf_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\elf_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.elf\ = "elf_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\elf_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\elf_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\elf_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\elf_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.elf	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2608 AcroRd32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

2608 AcroRd32.exe
2608 AcroRd32.exe
2608 AcroRd32.exe

pid	process
2608	AcroRd32.exe

pid	process
2608	AcroRd32.exe
2608	AcroRd32.exe
2608	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2860 wrote to memory of 2604	2860	cmd.exe	rundll32.exe
PID 2860 wrote to memory of 2604	2860	cmd.exe	rundll32.exe
PID 2860 wrote to memory of 2604	2860	cmd.exe	rundll32.exe
PID 2604 wrote to memory of 2608	2604	rundll32.exe	AcroRd32.exe
PID 2604 wrote to memory of 2608	2604	rundll32.exe	AcroRd32.exe
PID 2604 wrote to memory of 2608	2604	rundll32.exe	AcroRd32.exe
PID 2604 wrote to memory of 2608	2604	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\linux_hive.elf
1⤵
- Suspicious use of WriteProcessMemory
PID:2860

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\linux_hive.elf
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2604

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\linux_hive.elf"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2608

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
ece003672968d2fae1f1f525a810599f

SHA1
3ac48375e1e2f46436146236955c1bc1c7715a82

SHA256
399fc1309b8df7de977ec415cc590c2f98a4f3723164f56401822cc93e5c9f99

SHA512
d29c01f2d4edadd1133da5bd6c66801ed03adbff03b2584f93de1c3c5df8a294316abc1697245d1dffb2cd727dfde4a1a64c74bbd4b2b124554de2aed0136888

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