babb6603ef3db2a4394ad8ea40c6373245dad6604bee7481383acd003cf9f70a

Analysis

max time kernel
120s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27-03-2024 01:33

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General

Target

GB1283.gb
Size

128KB
MD5

d67e58bf5f39d5fb073fed85c3d9bede
SHA1

4a61945c1e3a37301748314777835c0e122a67e6
SHA256

7771919d5f5a114fb8685345eab290be22e99c59d8798ed9c5f29e3079c11c56
SHA512

77ee435d9813a4ed4ae967e5319e28dfd67fa965bca984557e720fb46d40f7ea5fb5041132938759cacf2b68f3f9f1ae6062565b574132f82de26a326989aa57
SSDEEP

3072:Vqv6XavZsqdnawiksYy2Rvt3DQ6drN806:uGaBsOnKkg2H3s6drY

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-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\gb_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.gb	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.gb\ = "gb_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\gb_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\gb_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\gb_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\gb_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\gb_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2740	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2740	AcroRd32.exe
2740	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2884 wrote to memory of 3064	2884	cmd.exe	29
PID 2884 wrote to memory of 3064	2884	cmd.exe	29
PID 2884 wrote to memory of 3064	2884	cmd.exe	29
PID 3064 wrote to memory of 2740	3064	rundll32.exe	30
PID 3064 wrote to memory of 2740	3064	rundll32.exe	30
PID 3064 wrote to memory of 2740	3064	rundll32.exe	30
PID 3064 wrote to memory of 2740	3064	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\GB1283.gb
1⤵
- Suspicious use of WriteProcessMemory
PID:2884
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\GB1283.gb
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3064
- - 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\GB1283.gb"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2740

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
cff86859c0abeb1b9118ddd7a6ec39be

SHA1
d587df2426cc7517a92694cce65833c2d662ca30

SHA256
3f16814d11fec08b652a8ca22fb667bac2a29fb61544c3ef642603200d4140bd

SHA512
6186864a14aa463d73fe04df5071bfb558ffcdbd8d40f6ce5a91e9ad18b291fe2a22c7cb450fe015cda4e1dd2a62ea7666341e3ad6c72c44d281ac682f5ba31b

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