0f931ef68b73d54c7badb15ce19ffe79a9ebb6489ecf86a808cd57b3874404d2

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
11-06-2024 18:31

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

_locales/cs/messages.json
Size

23KB
MD5

76e45853b6cdfb7e15e7721a424c7609
SHA1

7ddd801e53d61f02286a0acb7ee816667fe8efd2
SHA256

363a26b48db2e76464218f04d0ca4ca4cb493602ebef4de6c59a28512592fe94
SHA512

18e350da5254d1e83354a9be14d3dc13a80df51b08899b4082754108d9f1b779f59e86830c518a129aa5be7e708ff625b5d5813a59c0492876fcd4dc9b3cd541
SSDEEP

384:Jwi/UzqLj7OX0MjWkeD6x5+XiHKNvezbmY1ODwYGG0I3mkJNK+zZAnm:aiszqPMWkemevezbNwDD3mkpUm

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-1-5-21-1298544033-3225604241-2703760938-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.json	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\json_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\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\json_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2104 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2104 AcroRd32.exe
2104 AcroRd32.exe

pid	process
2104	AcroRd32.exe

pid	process
2104	AcroRd32.exe
2104	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1704 wrote to memory of 2144	1704	cmd.exe	rundll32.exe
PID 1704 wrote to memory of 2144	1704	cmd.exe	rundll32.exe
PID 1704 wrote to memory of 2144	1704	cmd.exe	rundll32.exe
PID 2144 wrote to memory of 2104	2144	rundll32.exe	AcroRd32.exe
PID 2144 wrote to memory of 2104	2144	rundll32.exe	AcroRd32.exe
PID 2144 wrote to memory of 2104	2144	rundll32.exe	AcroRd32.exe
PID 2144 wrote to memory of 2104	2144	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\_locales\cs\messages.json
1⤵
- Suspicious use of WriteProcessMemory
PID:1704

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\_locales\cs\messages.json
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2144

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\_locales\cs\messages.json"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2104

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
2db5fb5b4d69a4c8ebd05786dc2b7d60

SHA1
6868981273fc6fc6d302421416e247c34936d6a2

SHA256
99766c285bc0c0d100fbd02b0cb8bd5fc94bd5c275996a2b56b2b5c0409809af

SHA512
381df4d6214e3662d4417a639cd782aeacbd406836993e847d9d96ccd80b022d16b4be54338b5c863e514dad5ba668ce561cb0c02ff2bdfb1d1381d38134fad7

Download Submit