594fc6920eaa06364ff7ffeb87be15ec81882030749759a872a6b9f17da75670

Resubmissions

21/05/2024, 14:43

240521-r3mvhshd83 3

21/05/2024, 14:40

21/05/2024, 14:37

21/05/2024, 14:34

21/05/2024, 14:31

Analysis

max time kernel
18s
max time network
17s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
21/05/2024, 14:43

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General

Target

Some Problems/Copy of LLDkEQ5srTk9pXpCGmIUZZ2le5xYmbHD0Zaznv0KVNJx5_NvhTho2KOmZ8spgSsCQtgYZ87If32dXOkSszkOHHNAGyN7Gw==.c9r
Size

528KB
MD5

35846113b7b45bfc40eb14dcf57b4a9d
SHA1

f0e05b4146dca12ba8dfa6ad2191d05134247be4
SHA256

11bb3428953335125fab9534d27581ce9a88f9f33fa3f8f845e24ff3acd94079
SHA512

12d3f618837995d2748ce528d05224ac2fe5d47597328f9b7158fc05c98305519a5b94d4f47f221c8ba1a67cf150ea226675ac7fbb9e7f8e704478f9dded8dba
SSDEEP

12288:hqC6n0wotd75qejmSfSkphQGBhETT8zt73M+lCOUfgaZ2:Aro75qejmASsi+asNGfS

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-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\c9r_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.c9r	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.c9r\ = "c9r_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\c9r_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\c9r_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\c9r_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\c9r_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\c9r_auto_file	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2524	AcroRd32.exe
2524	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2824 wrote to memory of 2660	2824	cmd.exe	29
PID 2824 wrote to memory of 2660	2824	cmd.exe	29
PID 2824 wrote to memory of 2660	2824	cmd.exe	29
PID 2660 wrote to memory of 2524	2660	rundll32.exe	30
PID 2660 wrote to memory of 2524	2660	rundll32.exe	30
PID 2660 wrote to memory of 2524	2660	rundll32.exe	30
PID 2660 wrote to memory of 2524	2660	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Some Problems\Copy of LLDkEQ5srTk9pXpCGmIUZZ2le5xYmbHD0Zaznv0KVNJx5_NvhTho2KOmZ8spgSsCQtgYZ87If32dXOkSszkOHHNAGyN7Gw==.c9r"
1⤵
- Suspicious use of WriteProcessMemory
PID:2824
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Some Problems\Copy of LLDkEQ5srTk9pXpCGmIUZZ2le5xYmbHD0Zaznv0KVNJx5_NvhTho2KOmZ8spgSsCQtgYZ87If32dXOkSszkOHHNAGyN7Gw==.c9r
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2660
- - 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\Some Problems\Copy of LLDkEQ5srTk9pXpCGmIUZZ2le5xYmbHD0Zaznv0KVNJx5_NvhTho2KOmZ8spgSsCQtgYZ87If32dXOkSszkOHHNAGyN7Gw==.c9r"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2524

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
517f07d2932ea250edb3ccacc5a97019

SHA1
429acd8a8a12ac4e6bca57153bc4638d3ebc0056

SHA256
9242d2b11c966bbb4d31479c5471ffab19f34009fde9af15cd79f4463c61e6b4

SHA512
5de40c7168a54ea84eb99bd1598fc5757770147df1e6315decb326e53856cd1d4c98a06aea7b813165f6cf6d0d2d4cefcbe0ff93fa406fbcc73a2119449972e3

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