eb21a698101b0781187b0df85ea6683043e36d5e4229dc692b0a2e410c8adc6e

Analysis

max time kernel
120s
max time network
129s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21/04/2024, 13:16

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General

Target

icudtl.dat
Size

10.1MB
MD5

62880b7d351a9f547b62b8da6c97ce25
SHA1

057f11003013cfb3f1c63e6bdd4f2f9949ff0104
SHA256

7c40c811d30d459dbf04a04c141b60eb4247cd58a008fb836605317df665748f
SHA512

0d6f83175a91d90f4cc3ec4d9071b7acd0cd8ebbcc592322e46fde2adb7198e035af62c45a11a622f2a908e26d4dd8b8d1af023e634a74d0824d02c791ba3c1a
SSDEEP

196608:1IPBhORjFQwCliXUxbblHa93Whli6Z86WOH:1kwVAliXUxbblHa93Whli6Z8I

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
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_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-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\dat_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\dat_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\dat_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.dat\ = "dat_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\dat_auto_file\shell\Read	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\dat_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.dat	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2392	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2392	AcroRd32.exe
2392	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2212 wrote to memory of 2520	2212	cmd.exe	29
PID 2212 wrote to memory of 2520	2212	cmd.exe	29
PID 2212 wrote to memory of 2520	2212	cmd.exe	29
PID 2520 wrote to memory of 2392	2520	rundll32.exe	30
PID 2520 wrote to memory of 2392	2520	rundll32.exe	30
PID 2520 wrote to memory of 2392	2520	rundll32.exe	30
PID 2520 wrote to memory of 2392	2520	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\icudtl.dat
1⤵
- Suspicious use of WriteProcessMemory
PID:2212
- 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:2520
- - 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:2392

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
b79fcaebd0fa47565f63634937a475be

SHA1
81a4df2d727e91c6f116da81b04dd1344b9c3e1a

SHA256
b0e6f988509df5bcda20c7d85e8c6f93a41538235ba7ea95af89a28dbc1c3743

SHA512
c47ac35fbf9781308c64091a69972a46e5328f0b9ddf185b3daa5ade348eea20b3d4576d78d948f38bb3ac3a0a50e7a4714fd7ef786ac6f9ba8c7513c43c6a4b

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