f8a2c7bf6611cc965e76f1286fc460ec47f3d7e4353877716417cd8b553b2667

Analysis

max time kernel
1559s
max time network
1561s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
03/02/2024, 00:54

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General

Target

$PLUGINSDIR/app-64.7z
Size

59.2MB
MD5

e4f3b0f99a16b9bf129efe5ee537724a
SHA1

2e8b59b404e4424f29bc8bc4c480ce496dc204ce
SHA256

33c31be60948c181ed8b158a65fd5cdfe4a191affa16c40174fd4ee2ac2d141f
SHA512

7ee945fe5d5c4e3ca0b7e2ce0a14ee47545df081b3ac3bcb02f5f052879f5ba91bbfec1d273a33e68d4c071608469e926757838bdb5857efe1f3549bc7481833
SSDEEP

1572864:Qm6q0wCVELnze/K/TZJIgd/nOxLHiSJrVIXRJ3vZy+yHt:j6HwCVEe/A7TRoiHXRJ3k7Ht

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-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.7z	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\7z_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\7z_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\7z_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\7z_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\7z_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\7z_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.7z\ = "7z_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2688	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2688	AcroRd32.exe
2688	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 836 wrote to memory of 2168	836	cmd.exe	26
PID 836 wrote to memory of 2168	836	cmd.exe	26
PID 836 wrote to memory of 2168	836	cmd.exe	26
PID 2168 wrote to memory of 2688	2168	rundll32.exe	30
PID 2168 wrote to memory of 2688	2168	rundll32.exe	30
PID 2168 wrote to memory of 2688	2168	rundll32.exe	30
PID 2168 wrote to memory of 2688	2168	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\app-64.7z
1⤵
- Suspicious use of WriteProcessMemory
PID:836
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\app-64.7z
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2168
- - 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\$PLUGINSDIR\app-64.7z"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2688

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
e79620b0594aa00da50a35affe8f7c76

SHA1
864795c7c32b5f944848ea613ff60192eefb5155

SHA256
80b8159383f3171140f94785c19e12be2002a0b0987456ec89cd24e1b491a059

SHA512
d6408fb1588e33c7636835b7a6de4e51ea10cba533ebb67203c2ff7adf765a6aa51c86ce69f28a905a7164316bbd6ffb911cb307a7d9cb9ef62a0a0bf4b072ef

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