0ccf9d46633ad337dd31852311e9c4e7906c579af584a9eb77725360a6028ba5

Analysis

max time kernel
121s
max time network
127s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
28/05/2024, 19:30

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General

Target

icudtl.dat
Size

10.2MB
MD5

e0f1ad85c0933ecce2e003a2c59ae726
SHA1

a8539fc5a233558edfa264a34f7af6187c3f0d4f
SHA256

f5170aa2b388d23bebf98784dd488a9bcb741470384a6a9a8d7a2638d768defb
SHA512

714ed5ae44dfa4812081b8de42401197c235a4fa05206597f4c7b4170dd37e8360cc75d176399b735c9aec200f5b7d5c81c07b9ab58cbca8dc08861c6814fb28
SSDEEP

196608:hpgPBhORiuQwCliXUxbblHa93Whli6Z86WOH:n8wkDliXUxbblHa93Whli6Z8I

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-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\dat_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\dat_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\dat_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\.dat\ = "dat_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\dat_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\dat_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.dat	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\dat_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2600	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2600	AcroRd32.exe
2600	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2960 wrote to memory of 2640	2960	cmd.exe	29
PID 2960 wrote to memory of 2640	2960	cmd.exe	29
PID 2960 wrote to memory of 2640	2960	cmd.exe	29
PID 2640 wrote to memory of 2600	2640	rundll32.exe	30
PID 2640 wrote to memory of 2600	2640	rundll32.exe	30
PID 2640 wrote to memory of 2600	2640	rundll32.exe	30
PID 2640 wrote to memory of 2600	2640	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\icudtl.dat
1⤵
- Suspicious use of WriteProcessMemory
PID:2960
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\icudtl.dat
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2640
- - 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\icudtl.dat"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2600

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

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
5e0691b06562ec8929214bf1c4ac948c

SHA1
4917ecb7a9876bb52f97b04389c7b12c7e46563c

SHA256
14fdd9300e13d236a81712bd0a296733a0a17f11618045f69353e437d62131bc

SHA512
1a6d380f6dfc5e63c4e45caf0be041e92b9d599b14fd49b0c7866f2e01ed866e742d1b65f6fdc919049837c088a5f5c5e2754e5e27380a64e85f0a39067ff170

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