1b41ee0f3ac7f2c9cacf8cc5741b29914a38da008fbe964b3052b8b76850072b

Analysis

max time kernel
150s
max time network
130s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
28/08/2023, 18:29

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General

Target

.channel
Size

45B
MD5

5a4d6bcefa1daa4a8695bd48885c2ad2
SHA1

5022b264ef54581ca56baa67f19645f8c0a52be3
SHA256

a5e091a2ca79be0453029dc0b40d7e23c680984f82bd398a3def9e082063f30a
SHA512

4b8cac6d50b6284511940751012932152de434a2b0b2901f557cb288c15b357f7330596c2d5e96b49bd7fc5056a1d6b6c17302eaafac0ef20e416ecca5af1f87

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-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\channel_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\.channel\ = "channel_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\channel_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\channel_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\channel_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\channel_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\channel_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\.channel	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2784	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2784	AcroRd32.exe
2784	AcroRd32.exe
2784	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1576 wrote to memory of 2776	1576	cmd.exe	29
PID 1576 wrote to memory of 2776	1576	cmd.exe	29
PID 1576 wrote to memory of 2776	1576	cmd.exe	29
PID 2776 wrote to memory of 2784	2776	rundll32.exe	30
PID 2776 wrote to memory of 2784	2776	rundll32.exe	30
PID 2776 wrote to memory of 2784	2776	rundll32.exe	30
PID 2776 wrote to memory of 2784	2776	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\.channel
1⤵
- Suspicious use of WriteProcessMemory
PID:1576
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\.channel
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2776
- - 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\.channel"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2784

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
48abd53eaad83d6a9cdd3fc535fcf566

SHA1
5f406e87b43125a85e368d2a816ddb368f8fc9bd

SHA256
07e565605bb45154c1ae82162eae93c060bebc99ebe420469468fd650d26e9ce

SHA512
6b1ffde3304dae81b7a39bd30abc35d32748a935c78af01c2b8ed5e863adce41221e5fb33158882195bf7ef9ce5b5086c6b885fb850df1ca8a3bbeb82f0ab1e9

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