5daea0e236791d060252b4e08b7c5e287d448891187ea0ca2b802e4ea1af9834

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25-02-2024 12:19

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General

Target

resources.pak
Size

4.9MB
MD5

df15387bf046715cc592a690da33e4b1
SHA1

ad93b08dff82cbd894f6a0a9733c70d7e564113d
SHA256

11d0f55c105883d203137a87a610ba793299dc4774fd6d8b3a86666a2c337041
SHA512

71244553d7b1b559fcaaa059622c340d22148bd5324fa3f6730d37322025dbfe5e853948b49b91db6022a25bca4ddbab8fe6ee1522a461963dfba04a7c93d69a
SSDEEP

98304:b6zN1Kt66I0+1Yk93pPVrXh188CYCUrwr1ISgMRQK8nXCpGm5vEybt:+zjKt66bGVrhm8hCUkrGsyCV5vXbt

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-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2652	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2652	AcroRd32.exe
2652	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 2656	2336	cmd.exe	29
PID 2336 wrote to memory of 2656	2336	cmd.exe	29
PID 2336 wrote to memory of 2656	2336	cmd.exe	29
PID 2656 wrote to memory of 2652	2656	rundll32.exe	30
PID 2656 wrote to memory of 2652	2656	rundll32.exe	30
PID 2656 wrote to memory of 2652	2656	rundll32.exe	30
PID 2656 wrote to memory of 2652	2656	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\resources.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\resources.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2656
- - 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.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2652

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
b3b626dc0340edb054b7a48121c5bbf7

SHA1
aa67365d334cd869c56fd55f0465165690fabf45

SHA256
83ee60cb4491d986eb72a19f2ba7a849728f892793a32b100c3a3b156a12848c

SHA512
494298a84a18aac015b3d141210224ff55ad87f9f07b7eaaf6cc5bafc4d1bddaaadd2713c007dc33f137274c4de6cd4cf8fa6b16d6ff413d85342701a1b3a72e

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