fbcfbc9ed5c1777946b0dad7a5813377960a134e9907d3e0669804d273defe90

Resubmissions

25-10-2023 13:58

231025-q979cshd42 1

25-10-2023 13:54

231025-q72c2ahc87 3

25-10-2023 13:53

231025-q6ywhshc46 1

Analysis

max time kernel
165s
max time network
49s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
25-10-2023 13:54

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General

Target

AppxSignature.p7x
Size

11KB
MD5

cb484fe3c01bbd81ebeaab24069fc76e
SHA1

767cf0e85397e4135d5836b761c45c9f6a79198f
SHA256

46ca4a476964ca72ead360746ab8afeb84366c11bad0a78fb2e9d8b12dd3cf24
SHA512

0dd1df6d5276f675187c7800ce8ff81c1284e65d2ea882925933804b84447c7a854085bbae25e7a88ac5a0afad5c2ca88f68f97d06f2d0f9eb225267790c24e9
SSDEEP

192:Azz7gpecbZziJFg9hHTz+nE3zdwTh+kSobX01k9z3ArRhbscD:Anmzi3g9hHH+EiK+R9zILscD

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-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\p7x_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\p7x_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\.p7x	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\p7x_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\p7x_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\p7x_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\p7x_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\.p7x\ = "p7x_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid	Process
2892	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid	Process
2892	AcroRd32.exe
2892	AcroRd32.exe
2892	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	Process	procid_target
PID 2976 wrote to memory of 2640	2976	cmd.exe	30
PID 2976 wrote to memory of 2640	2976	cmd.exe	30
PID 2976 wrote to memory of 2640	2976	cmd.exe	30
PID 2640 wrote to memory of 2892	2640	rundll32.exe	31
PID 2640 wrote to memory of 2892	2640	rundll32.exe	31
PID 2640 wrote to memory of 2892	2640	rundll32.exe	31
PID 2640 wrote to memory of 2892	2640	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\AppxSignature.p7x
1⤵
- Suspicious use of WriteProcessMemory
PID:2976
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\AppxSignature.p7x
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2640
- - 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\AppxSignature.p7x"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2892

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

Replay Monitor

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Downloads

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

Filesize
3KB

MD5
7867362c00dc52a0950b99a5295f8711

SHA1
b68a9073e37353e1f3d79942a79c955033270e23

SHA256
f7cd84eed717102a24dda8bcce6b7142b3c879b08d05db0854abd176c033a945

SHA512
feb19499cbbf35c4e947a09799b30cfa4c7af02be6a5ac00d371efa9b6b2c6211842a10188f7d8e42b5b8e1fb1100fa032d57c381659e996ce593dd4ad6b680f

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