2a99f25f4212f53d7479bfb140c572ca9f44394fbc4817743b1338cddf95a2d6

Analysis

max time kernel
51s
max time network
41s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
06-01-2023 09:21

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General

Target

Chater_Rqst_rh_0.4.1 4.exe
Size

1.7MB
MD5

fc0ef831ee6dcd34f1cc1e3b484b139b
SHA1

c864404fddc9e946a52cbc4c54c1b450e70d76b0
SHA256

2a99f25f4212f53d7479bfb140c572ca9f44394fbc4817743b1338cddf95a2d6
SHA512

6438c021d82def59fd9aa087e301c0ebafd9dfadc59ba4cc645c92634d19040426159357654f11614bcb649c8da51cc1f4f3e264d3be87472c4e3ef70308c0a7
SSDEEP

24576:eK5eCX7JpFCcuBLN/TrReV1sHXLgAE4SDExTwoOFzJg4J2Yq1/FcULgBi/E7V+AR:ejTfecT3OuYq12UqIg

Score

5^/10

Malware Config

Signatures

Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs

pid	Process
532	Chater_Rqst_rh_0.4.1 4.exe
532	Chater_Rqst_rh_0.4.1 4.exe
532	Chater_Rqst_rh_0.4.1 4.exe

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

System Information Discovery
T1082

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	Chater_Rqst_rh_0.4.1 4.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	Chater_Rqst_rh_0.4.1 4.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	Chater_Rqst_rh_0.4.1 4.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	532	Chater_Rqst_rh_0.4.1 4.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 532 wrote to memory of 1540	532	Chater_Rqst_rh_0.4.1 4.exe	26
PID 532 wrote to memory of 1540	532	Chater_Rqst_rh_0.4.1 4.exe	26
PID 532 wrote to memory of 1540	532	Chater_Rqst_rh_0.4.1 4.exe	26
PID 532 wrote to memory of 1540	532	Chater_Rqst_rh_0.4.1 4.exe	26

C:\Users\Admin\AppData\Local\Temp\Chater_Rqst_rh_0.4.1 4.exe
"C:\Users\Admin\AppData\Local\Temp\Chater_Rqst_rh_0.4.1 4.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:532
- 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\65C6.tmp.pdf"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:1540

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\65C6.tmp.pdf

Filesize
17KB

MD5
2089766457ca94fa37e9702e4aac01df

SHA1
cb4a5f34497d8e2d8c619380f6142437b3e48e70

SHA256
b70b7cced61190ae1e8b108f05b9c4e6f8aaa0d5b97b46e5b785c8dce13716df

SHA512
d8e45db3c93962caa92fc757c100526daa1ca41a744e7cf15169b9a36639c8828d85ebb2ddaac5baa49afd456f950c41d4ba9df5e208c1a6c93080e724f3fc7e

Download Submit
memory/532-54-0x0000000075041000-0x0000000075043000-memory.dmp

Filesize
8KB

Download
memory/532-58-0x0000000032DB0000-0x0000000032EB0000-memory.dmp

Filesize
1024KB

Download
memory/532-59-0x00000000006F0000-0x000000000070E000-memory.dmp

Filesize
120KB

Download
memory/532-61-0x0000000033DC0000-0x0000000034A0A000-memory.dmp

Filesize
12.3MB

Download
memory/532-62-0x00000000006F0000-0x000000000070E000-memory.dmp

Filesize
120KB

Download