2d75bc310ccdfb81b7367a87d93b4539c1051512c294415ab8cd0e1b8c68792b

Analysis

max time kernel
118s
max time network
123s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
29-08-2024 03:01

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General

Target

locales/zh-CN.pak
Size

447KB
MD5

156894db535f0fbe193d66c0afb4b112
SHA1

e347caa3c41ea7461c217c029dbca54567fbe27c
SHA256

cc5a411d3bf0ddfba9e5041dfeeaed70265ba949f7b7ccba0170b88e3e14ceb0
SHA512

e81a0968598536e91c17a1998682cb5fff42bd3199c41b64e2d76827c96b187e8f86182843c061735dad2b7cd5e32750e473c1a5f9c82bcc0dcc30f1bdb8b806
SSDEEP

6144:toQrG8fptN1zkK7/56aO4ydpD659mqjNFEwYHB07ulz:jrptjzX56aO4yz65YcNFEwmB/

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-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_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-1-5-21-1385883288-3042840365-2734249351-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pak_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2792	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2792	AcroRd32.exe
2792	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2540 wrote to memory of 2080	2540	cmd.exe	31
PID 2540 wrote to memory of 2080	2540	cmd.exe	31
PID 2540 wrote to memory of 2080	2540	cmd.exe	31
PID 2080 wrote to memory of 2792	2080	rundll32.exe	33
PID 2080 wrote to memory of 2792	2080	rundll32.exe	33
PID 2080 wrote to memory of 2792	2080	rundll32.exe	33
PID 2080 wrote to memory of 2792	2080	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\zh-CN.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2540
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\zh-CN.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2080
- - 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\locales\zh-CN.pak"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2792

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
c71efe23b8f93cd8f4e5f060f6cb9d8a

SHA1
214f2d5c60478aac105ee4c420273bcd6a7b53c4

SHA256
e89941181981e393b0ae730eab1a4d0470be0c8b85438f44463efd535a7fc53c

SHA512
aef9c9493786d7867716cdcb6e52b0f9efd9c17f5c340ed02404cf0a2a893b81b1dc49b61b3fc8499f6441ba461bee414aff58df93278551935e1b0e3940f750

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