d2379b6baab95a3cf0be78b228374082ca9ee5b76510c7b333c95af38db24e7e

Analysis

max time kernel
153s
max time network
80s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
10/10/2023, 08:14

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General

Target

sharedassets196.resource
Size

159KB
MD5

37efd506bd03bf2190ecf10fb8a90e2f
SHA1

58406039b20e0b65bc5130aa9392b90c70c415a2
SHA256

c3bcf8857d7181030ce4a94317e2c525df784e691730976dac598f873596a98f
SHA512

dae6ad32f1d98cc6c9d3308535a1747e0fcd2d1ed45f03a812812824b11ef58697984332a42082a104693ca40b81bc9ea44a02fe80d9306bb477a8b728454ef1
SSDEEP

3072:QTh+KReC7a8PoWIxDxrm3kTAfdKSluh26aiT1wWu2pssWLnhinjvfQ0Fq:yhF3pUxrm0TAfdKSYh2BiT1Fu2psDhst

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-1-5-21-3849525425-30183055-657688904-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3849525425-30183055-657688904-1000_CLASSES\resource_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3849525425-30183055-657688904-1000_CLASSES\resource_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3849525425-30183055-657688904-1000_CLASSES\.resource	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3849525425-30183055-657688904-1000_CLASSES\resource_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3849525425-30183055-657688904-1000_CLASSES\resource_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3849525425-30183055-657688904-1000_CLASSES\.resource\ = "resource_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3849525425-30183055-657688904-1000_CLASSES\resource_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3849525425-30183055-657688904-1000_CLASSES\resource_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2540	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2540	AcroRd32.exe
2540	AcroRd32.exe
2540	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 2656	2904	cmd.exe	31
PID 2904 wrote to memory of 2656	2904	cmd.exe	31
PID 2904 wrote to memory of 2656	2904	cmd.exe	31
PID 2656 wrote to memory of 2540	2656	rundll32.exe	32
PID 2656 wrote to memory of 2540	2656	rundll32.exe	32
PID 2656 wrote to memory of 2540	2656	rundll32.exe	32
PID 2656 wrote to memory of 2540	2656	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\sharedassets196.resource
1⤵
- Suspicious use of WriteProcessMemory
PID:2904
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\sharedassets196.resource
  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\sharedassets196.resource"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2540

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
71eb4c31d3746c51821358cd0d00b585

SHA1
541b9a213a47cd57f0c45c108907a90c66fc32a2

SHA256
d6121b7a2b3115f042437f03103205f63e200d31528d8aba261ee89bb9ab52ed

SHA512
801d649bf7e9859c230f836ff0f5330e1cf9783f043b2f93d7510763e22a7f32e13c0005e7ab690d5fbeb9ec7cb019404de6560172ce3b9e257548fcb7e9c42b

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