784b1348a30bfd0dc8bfc44b4db3d3922bd74afa5b71a90dfbd47201151b6309

Analysis

max time kernel
1566s
max time network
1567s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
23-05-2024 00:37

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General

Target

ref_gl.pdb
Size

7.2MB
MD5

27fd3d866162f77d6b9e510045e77437
SHA1

61d5821265aede7ea6110fbaa741796743832353
SHA256

904f2f77c167f5309fb4c77ae12c3193b00c63b4188e8e1ec877a8fc6136155b
SHA512

8db6acbc1c0ef35f4e7c45c7a90ec0de6104976eef7c2460f374d837290af3fd7d76f85d73849d4850a49c590428e95766898ca18a6e79a09e6338ff7c876057
SSDEEP

98304:n9fp1Oq/LT9pk+xmwhHl8mtJbLHsyR9JmUmXmzARHjTP16G4uq/LT9pk+xmwhHln:n9fp1FARHjp4iAsp81

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-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\pdb_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\.pdb	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\.pdb\ = "pdb_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\pdb_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\pdb_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\pdb_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\pdb_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\pdb_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2664 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2664 AcroRd32.exe
2664 AcroRd32.exe

pid	process
2664	AcroRd32.exe

pid	process
2664	AcroRd32.exe
2664	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2420 wrote to memory of 2676	2420	cmd.exe	rundll32.exe
PID 2420 wrote to memory of 2676	2420	cmd.exe	rundll32.exe
PID 2420 wrote to memory of 2676	2420	cmd.exe	rundll32.exe
PID 2676 wrote to memory of 2664	2676	rundll32.exe	AcroRd32.exe
PID 2676 wrote to memory of 2664	2676	rundll32.exe	AcroRd32.exe
PID 2676 wrote to memory of 2664	2676	rundll32.exe	AcroRd32.exe
PID 2676 wrote to memory of 2664	2676	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\ref_gl.pdb
1⤵
- Suspicious use of WriteProcessMemory
PID:2420

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\ref_gl.pdb
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2676

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\ref_gl.pdb"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2664

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
7adace0c82d820434cf4afe71f78fd53

SHA1
64091a916c2df434bcc6dc2f544b9922607535e7

SHA256
0efffac22d200ac3a9d9f9de28fbc91e7c9c852f1f83efbc6d6493e8b32e98be

SHA512
ee8cfacf679c8b32d404d89e93097497b448d409df6e53876d42b3657eb397517f14d46cf5c9c80b16aaa53964f8a8cbc4f903a38236b680e84cbce1aa8a9e3a

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