564474f891b8da92851e93c2dfaeb67274abd69b6498ada12665a72fe00e69de

Analysis

max time kernel
117s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05/09/2024, 10:04

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General

Target

chrome_100_percent.pak
Size

126KB
MD5

8626e1d68e87f86c5b4dabdf66591913
SHA1

4cd7b0ac0d3f72587708064a7b0a3beca3f7b81c
SHA256

2caa1da9b6a6e87bdb673977fee5dd771591a1b6ed5d3c5f14b024130a5d1a59
SHA512

03bcd8562482009060f249d6a0dd7382fc94d669a2094dec08e8d119be51bef2c3b7b484bb5b7f805ae98e372dab9383a2c11a63ab0f5644146556b1bb9a4c99
SSDEEP

3072:AEKzwqCT4weSxQCS/qGTL2o418Gb0+VRLf0ld0GY3cQ39Vm2I:AEKzwt4hC4/rK18Gb0OV8ld0GecQ3f2

Score

3^/10

discovery

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_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-1-5-21-1488793075-819845221-1497111674-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\pak_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2628	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2628	AcroRd32.exe
2628	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 2736	2324	cmd.exe	31
PID 2324 wrote to memory of 2736	2324	cmd.exe	31
PID 2324 wrote to memory of 2736	2324	cmd.exe	31
PID 2736 wrote to memory of 2628	2736	rundll32.exe	32
PID 2736 wrote to memory of 2628	2736	rundll32.exe	32
PID 2736 wrote to memory of 2628	2736	rundll32.exe	32
PID 2736 wrote to memory of 2628	2736	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\chrome_100_percent.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\chrome_100_percent.pak
  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\chrome_100_percent.pak"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

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
38086c6ebdc9462eeccca15f8d7a2724

SHA1
0f3793ed8b16f21c3dd3287a53c50ec2fee9418d

SHA256
ba93359fa195328732fe1735c051e9bfdce1545dd1ebc5c30de8b201a88ae9d3

SHA512
3a134b0f8db83e4e7677823a61bf5846cf5ab08745fba5c0b9bd03d7ea1fc4c3405cfc10defc2b3e533d22a53c944af582fb8a82624d3f230f90c67f52719a22

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