e4ee87acc726f7deddf8f86fc1332059726645078108f0dad9429f21885b7833

Analysis

max time kernel
117s
max time network
132s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19/01/2024, 20:11

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General

Target

resources/packed/afterbirth_jp.a
Size

3.1MB
MD5

5ad231cf8ce9a6cde5727cc002741fea
SHA1

f03d669f5de3b2e71c98856acb0a2cd40e3aebfd
SHA256

9e323b3d7fb72e8e32174b3a73dd32f0b93684b0f9befd28d1f7030f938f6052
SHA512

7aa9f75ff2f87b4eb0258ee3c1d523f5978bd32ee1a6eb0e644525159cade63be40d6bf00b47e467841c2629a96541e261b42f9e6d6ea54f675a1c49cd99b369
SSDEEP

49152:LOkGOt/6g1pBVHV47XCNkb6rDbC49wQOEqqLFjFxZCVZfAE9F2G4XEjguK:LfBjCeNksjwQJqUFjfZC3f3+qje

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-1-5-21-3601492379-692465709-652514833-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\.a	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\.a\ = "a_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\a_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\a_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\a_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\a_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\a_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\a_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2780	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2780	AcroRd32.exe
2780	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2736	2232	cmd.exe	29
PID 2232 wrote to memory of 2736	2232	cmd.exe	29
PID 2232 wrote to memory of 2736	2232	cmd.exe	29
PID 2736 wrote to memory of 2780	2736	rundll32.exe	30
PID 2736 wrote to memory of 2780	2736	rundll32.exe	30
PID 2736 wrote to memory of 2780	2736	rundll32.exe	30
PID 2736 wrote to memory of 2780	2736	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\resources\packed\afterbirth_jp.a
1⤵
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\resources\packed\afterbirth_jp.a
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2736
- - 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\resources\packed\afterbirth_jp.a"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2780

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
f459c7a0ebc5012e2872dea2261e170c

SHA1
b12dd15188a4e615b469eff8a08f3c585579730d

SHA256
4ae64e1fc22cb1059736af3c3ee0b36cb84d9273e4a4e69721d168d402c3547e

SHA512
800977f56f8f0ca88de6bd3648c22c05cfe0ce19b335ad6cd8b0624787366904a19ec8689d01f776bfc72e9c427932a5649f373b956ea8c45eb559f7215f1b36

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