52a46e8d079ea9ed900f3784ded4406c3819e6e479ad7d5cac10073bb0fece31

Analysis

max time kernel
118s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21/04/2024, 06:16

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General

Target

I18n/es_ES/strings.mo
Size

28KB
MD5

a1048771c200f413e93fb5187b3749ff
SHA1

4cba74849c936288c7785e63ef6dd318d367a293
SHA256

703da75f6ff6be13a3342581700a48a72df772ea095ab16dd99e1f5bc6d645f6
SHA512

468ef8a0b087cd6e0be18050f8d8b6b361b9dcb8ac2aea9bc5c59e876e851d89ee0464664d3776fb6f702eeb02093d0381a4ed8fa7d52d24f191511c785b1b82
SSDEEP

768:bJtjOt0Foxuh6e3308cxHwHVbtlcTzVLa:+3uh6e337ZVbuzVG

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-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\mo_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\mo_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\mo_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\mo_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.mo\ = "mo_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\mo_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.mo	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\mo_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2776	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2776	AcroRd32.exe
2776	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 2760	2388	cmd.exe	29
PID 2388 wrote to memory of 2760	2388	cmd.exe	29
PID 2388 wrote to memory of 2760	2388	cmd.exe	29
PID 2760 wrote to memory of 2776	2760	rundll32.exe	30
PID 2760 wrote to memory of 2776	2760	rundll32.exe	30
PID 2760 wrote to memory of 2776	2760	rundll32.exe	30
PID 2760 wrote to memory of 2776	2760	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\I18n\es_ES\strings.mo
1⤵
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\I18n\es_ES\strings.mo
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2760
- - 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\I18n\es_ES\strings.mo"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2776

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
48bcbef4349caee9d602bb401a43a00e

SHA1
d0f2097e96e20c052be02ce31491d6f69ce52874

SHA256
28d126d538bd514c2b2a057c690a3cb66416cc808673d7d60848fd48467f218c

SHA512
20bc7757993ec720d92d833737c2bf2dac292d41b2ed6ce26890d8ae6b7bfede06b8fed9d9b6f2a744e18814ec8e74829b3beef1972aff758d35fcc2de107144

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