d45790ad179d7b2e726897a65dfcdb20cef3e943cdbbf2e352301ac2b0e85fef

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
28-05-2024 19:59

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General

Target

creal.pyc
Size

64KB
MD5

05317593399c25e6a5249f13e5d76dd9
SHA1

5cd013b76f29fb3f3558e39646b56ebee51dd6bd
SHA256

8aa67011091005839de572bb4f4b4e686fbbc39d2aa4437c3624609af5d6de66
SHA512

a09d24de48d2f8ad347865631b91e902715e6c6cb279c01c4ac50dede44b8ed3f9b46ae80a7b99293c67bf50c4c01ec82f09a77c98c592f25ffbc86c798efe8f
SSDEEP

1536:7Trme+0Ql9pObo8BHWftXASFW08VAeOR2e2:7T4Ybo8B2VXASNMAeOR+

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

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.pyc	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2916 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2916 AcroRd32.exe
2916 AcroRd32.exe

pid	process
2916	AcroRd32.exe

pid	process
2916	AcroRd32.exe
2916	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2800 wrote to memory of 2620	2800	cmd.exe	rundll32.exe
PID 2800 wrote to memory of 2620	2800	cmd.exe	rundll32.exe
PID 2800 wrote to memory of 2620	2800	cmd.exe	rundll32.exe
PID 2620 wrote to memory of 2916	2620	rundll32.exe	AcroRd32.exe
PID 2620 wrote to memory of 2916	2620	rundll32.exe	AcroRd32.exe
PID 2620 wrote to memory of 2916	2620	rundll32.exe	AcroRd32.exe
PID 2620 wrote to memory of 2916	2620	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\creal.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2800

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:2620

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:2916

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
0c4c8e62dae29089b07f1281cbea9da4

SHA1
715924828d2158111d9ddd35711418f780ba7c5e

SHA256
30c505980ccb1961c9afa16ba089102fb5f6c22b18c1e646b19816c9ffcc0bf1

SHA512
d44e6e65ae78414767574c993dfc233b96a60a7b8442d1dcad780ee734d3ba5216fdb7f43542ad8163db3df19f15ec99159d300585dfb9d46e970280e701ae13

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