997918adb5bdc5781b823fe5800e8cb1ee7bf763bdf96dbefd64c6893122423e

Analysis

max time kernel
43s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
02/02/2023, 13:33

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General

Target

baa16c18d7e6175530b5555263acc73109b33d73.exe
Size

11KB
MD5

1fb24cd509d9fb14100a8e0802cc6b36
SHA1

baa16c18d7e6175530b5555263acc73109b33d73
SHA256

997918adb5bdc5781b823fe5800e8cb1ee7bf763bdf96dbefd64c6893122423e
SHA512

cdca1d5fc84ecc5e03c6530056da5dfa714f74480fdcf8e9aebe9797a08acd2ae2e76c0bc1e748a770d7828249e5369cd245ccfad01599137a6d4d5257889243
SSDEEP

192:jaoQF1cxvY43cyGd17qdJfZoptaCyCM19yjVxo91nGOjfqdv:gF1sA43ud14JhonaDCM1kvOdxedv

Score

8^/10

persistence

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\HFDF = "C:\\Windows\\system32\\hfdf0524.exe"	baa16c18d7e6175530b5555263acc73109b33d73.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	baa16c18d7e6175530b5555263acc73109b33d73.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\hfdf0524.dll	baa16c18d7e6175530b5555263acc73109b33d73.exe
File created	C:\Windows\SysWOW64\test.sys	baa16c18d7e6175530b5555263acc73109b33d73.exe
File created	C:\Windows\SysWOW64\hfdf0524.exe	baa16c18d7e6175530b5555263acc73109b33d73.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
364	baa16c18d7e6175530b5555263acc73109b33d73.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
460	Process not Found

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 364 wrote to memory of 1300	364	baa16c18d7e6175530b5555263acc73109b33d73.exe	11
PID 364 wrote to memory of 1932	364	baa16c18d7e6175530b5555263acc73109b33d73.exe	27
PID 364 wrote to memory of 1932	364	baa16c18d7e6175530b5555263acc73109b33d73.exe	27
PID 364 wrote to memory of 1932	364	baa16c18d7e6175530b5555263acc73109b33d73.exe	27
PID 364 wrote to memory of 1932	364	baa16c18d7e6175530b5555263acc73109b33d73.exe	27

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1300
- C:\Users\Admin\AppData\Local\Temp\baa16c18d7e6175530b5555263acc73109b33d73.exe
  "C:\Users\Admin\AppData\Local\Temp\baa16c18d7e6175530b5555263acc73109b33d73.exe"
  2⤵
  - Adds policy Run key to start application
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:364
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\w1.bat" "
    3⤵
    PID:1932

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

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\Local\Temp\w1.bat

Filesize
334B

MD5
a3fad92d9597f745bc52a49e4848baee

SHA1
4765c3f1e70ff07fb558d4b8c9b6c8fc7f7645fe

SHA256
48eab08e15678ac8ffdea0a2107976fa10ce9ae34e122ee231ca8b0a86b5a9fc

SHA512
a6ef8b68e70c3179a1357456e82b7abf18fe9a8fe99d835257beb2070e7701f565b7718510880e0b2e18d37a7a8121493c9fd402743a977f107e07a30a632459

Download Submit
memory/364-54-0x0000000075131000-0x0000000075133000-memory.dmp

Filesize
8KB

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