4026e330b06e54fb334314ecac5ceca07830967a84f11bd8803a20164653109b

Analysis

max time kernel
1566s
max time network
1569s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07-03-2024 17:13

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General

Target

creal.pyc
Size

32KB
MD5

eb61d23367de0ebe3776c297b3af611b
SHA1

68308d6df71bc573e56d3023fdfc7729e05f0dd4
SHA256

2fa9d7b0f42e63994c1f96c6cfae62f9c3491a53605a1d2212309cd8cdd132a3
SHA512

6fce08320a5f37ba6da9a082634a3b92040c58f8846fed09c000604474f94f09aebf88c2c1cadbea63fd8762d6aa83725a700707159b0e43748447bb46f6a5f3
SSDEEP

768:L8Dnrt2VsfNEiyAuAfKFMrRtfqtvEwS7bnjerAroaHDsIAvN8YC06X:IjrNe3aKFcfDwS7fOPviYD6X

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-1-5-21-1298544033-3225604241-2703760938-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file\	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2084	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2084	AcroRd32.exe
2084	AcroRd32.exe
2084	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1948 wrote to memory of 2672	1948	cmd.exe	29
PID 1948 wrote to memory of 2672	1948	cmd.exe	29
PID 1948 wrote to memory of 2672	1948	cmd.exe	29
PID 2672 wrote to memory of 2084	2672	rundll32.exe	30
PID 2672 wrote to memory of 2084	2672	rundll32.exe	30
PID 2672 wrote to memory of 2084	2672	rundll32.exe	30
PID 2672 wrote to memory of 2084	2672	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\creal.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\creal.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2672
- - 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\creal.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2084

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
bd183c10865054581b56629237988852

SHA1
442f85d92e8111f37e8a9e06f14f216996ea8eab

SHA256
fb30ed40bb8ac709ea5fa06fd25e1be9a81a1c8d76020b02325e6d280bb39abe

SHA512
9e1511dfc3c858b23392fd585c574c5d922d61a6c03413e22ae2d2d346242c95b3bd0a39f16125827531185cdb928f7f09c2ace0f9e9ed2b3f249243c545c8d5

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