ea881853f35b6971f49332c5d66e7388b8598e5ac5a0bca24826bc08f22bd4c9

Analysis

max time kernel
121s
max time network
130s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04/10/2024, 20:53

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General

Target

icudtl.dat
Size

10.0MB
MD5

ffd67c1e24cb35dc109a24024b1ba7ec
SHA1

99f545bc396878c7a53e98a79017d9531af7c1f5
SHA256

9ae98c06cbb0ea43c5cd6b5725310c008c65e46072421a1118cb88e1de9a8b92
SHA512

e1a865e685d2d3bacd0916d4238a79462519d887feb273a251120bb6af2b4481d025f3b21ce9a1a95a49371a0aa3ecf072175ba756974e831dbfde1f0feaeb79
SSDEEP

196608:+SPBhORiYAXHiXUxY/iJ53IWhlVjEeIu2Y6U:++wkpHiXUxY/iJ53IWhlVjEeIZU

Score

3^/10

discovery

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2640	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2640	AcroRd32.exe
2640	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2884 wrote to memory of 1272	2884	cmd.exe	31
PID 2884 wrote to memory of 1272	2884	cmd.exe	31
PID 2884 wrote to memory of 1272	2884	cmd.exe	31
PID 1272 wrote to memory of 2640	1272	rundll32.exe	32
PID 1272 wrote to memory of 2640	1272	rundll32.exe	32
PID 1272 wrote to memory of 2640	1272	rundll32.exe	32
PID 1272 wrote to memory of 2640	1272	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\icudtl.dat
1⤵
- Suspicious use of WriteProcessMemory
PID:2884
- 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:1272
- - 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⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

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
a34d1a5402a0a77204e98a961883461b

SHA1
52f44b69f783b5ef8bf5e1015f2f3cdca6c57610

SHA256
623185b4003b83ebc44a7c2645f3a7741a533809e5b92744f2d3fa6fce33ec82

SHA512
1edd83445b0ac8f1bdc08e8153cc70421604fe04792366484968a74f70dafb4744145fc0a4b98e9729e333cd9ba81f4caea59ca22ee0e9a3f1f0f5eaa1c7ee79

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