fb5deefac6d0f45283b29b0297d22028557b870a8418f2123cb65462e03c19d9

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
15-09-2023 05:03

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General

Target

suricata.rules
Size

25.4MB
MD5

22f137b767de241e756bc92e7cd76f10
SHA1

357bce3c828226c34591a6b4c498b2cfc41d4220
SHA256

fb5deefac6d0f45283b29b0297d22028557b870a8418f2123cb65462e03c19d9
SHA512

6ec2d17dde29a8e10bdf0f00513add86006f706c2bdf546b6c65ca580e3ee0ffe80575951aa850d8ad3ca2cbd8a2535c54a654043726e843cdaff6d3f88d0994
SSDEEP

49152:1Cqr1WcSp+ay41maAVV5a/byT9Lm1eTNzi0cUIB70jeRf2nr4Z8TiKQVkCHNSAOo:4YaTyckEVkCHNSAaC6c

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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000_CLASSES\rules_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000_CLASSES\rules_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000_CLASSES\rules_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000_CLASSES\rules_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000_CLASSES\rules_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000_CLASSES\.rules	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000_CLASSES\.rules\ = "rules_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000_CLASSES\rules_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2724	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2724	AcroRd32.exe
2724	AcroRd32.exe
2724	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2188 wrote to memory of 2744	2188	cmd.exe	29
PID 2188 wrote to memory of 2744	2188	cmd.exe	29
PID 2188 wrote to memory of 2744	2188	cmd.exe	29
PID 2744 wrote to memory of 2724	2744	rundll32.exe	30
PID 2744 wrote to memory of 2724	2744	rundll32.exe	30
PID 2744 wrote to memory of 2724	2744	rundll32.exe	30
PID 2744 wrote to memory of 2724	2744	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\suricata.rules
1⤵
- Suspicious use of WriteProcessMemory
PID:2188
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\suricata.rules
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2744
- - 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\suricata.rules"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
0a08960af6f117691ce01c6a94009257

SHA1
135757f2efcee7812fb1d73f16bb44d4687e47d3

SHA256
a910731e9ac66c6ecf1ddeb689f9fda562ee0a8cb686cdaa0fa9a084c38ffe1e

SHA512
d7a871a71d98a8854368dd4e927c7bb7cf2dcb91a76d5a5ae2a6641339cd02424c136b5a1aa476b912859fc3af348694179db4b2efe6f03859a9b5f8556ed736

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