948e83e39fb15741121f6944f7f3603888e16dfb7c6d66481785daad894ad2f9

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19-04-2024 12:16

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General

Target

add_from_excel.pyc
Size

25KB
MD5

eb83674aa2f9319ec439b6b469241c0f
SHA1

52bb6c11696d118ea762f0a2bb87f4ae81f53e9c
SHA256

c7d98bb62b0609f86f02706693f6edd512fdbc5d831a58dfaf009066ae4bacb9
SHA512

565df267a5e8848e5c003ab5ffe4e37fffef43821e63819197574129e7e5ad2e9bfde66c53054af706133e31b6e0bc988705e8ec60ec339244dd08b292cc1a0b
SSDEEP

384:P6VgkjMOFwmmjfmNM1tzk2l5WODOiA1Y3dh9X4hoQT+WU0A/88888s8cjd2hpyjo:wgkLFwF2Az7l5WODOPY3mT+OAvdj9qvZ

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-1-5-21-3452737119-3959686427-228443150-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1208	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1208	AcroRd32.exe
1208	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1948 wrote to memory of 2600	1948	cmd.exe	29
PID 1948 wrote to memory of 2600	1948	cmd.exe	29
PID 1948 wrote to memory of 2600	1948	cmd.exe	29
PID 2600 wrote to memory of 1208	2600	rundll32.exe	30
PID 2600 wrote to memory of 1208	2600	rundll32.exe	30
PID 2600 wrote to memory of 1208	2600	rundll32.exe	30
PID 2600 wrote to memory of 1208	2600	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\add_from_excel.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:1948
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\add_from_excel.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2600
- - 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\add_from_excel.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1208

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
ef631c8cb7638ec1d5c6ba3986fbbc8b

SHA1
9a2b5e8a8af3feb1d4b765f965843d9d585f52ea

SHA256
8499a3895a85b300fb48c55ebf8799c6359e93625da0862514aa7ab52fcd2a1c

SHA512
c7fb8401066bb8101868b61315050ec77df3dc79bb3bd7dcec185596dda39fd41e07189c474eee7ae7a52ba6465bc8e0790ef85f4d863a4e140d61093e03bd82

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