48a4af576b88e755c0864fd82747b6f7b925b80460a85e763b37512fbea7353c

Analysis

max time kernel
133s
max time network
177s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
12/10/2022, 17:29

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General

Target

48a4af576b88e755c0864fd82747b6f7b925b80460a85e763b37512fbea7353c.exe
Size

349KB
MD5

7940d5609519438c9b290f2065dd2470
SHA1

51222bf03f3e1c6c41d04495bcd410a23cda2589
SHA256

48a4af576b88e755c0864fd82747b6f7b925b80460a85e763b37512fbea7353c
SHA512

485f15db51fc1194a41ea9482c6eb43246e0d70b1cfcb262f234d7503539b706fb77d006df381a16a7c23543fd2c68a78e639b3deca03d4a52b87ea4276815d9
SSDEEP

6144:rknN4CVUIm6uk06ZLYgvBA+8xmrxgmA+3cclptVopAsZ/S59jhbp:onNhuBoY8SorxgmA+nlvVls52

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4932	SYSTEM65_.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2532-132-0x0000000000400000-0x00000000004BE000-memory.dmp	upx
behavioral2/memory/2532-137-0x0000000000400000-0x00000000004BE000-memory.dmp	upx

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/2532-137-0x0000000000400000-0x00000000004BE000-memory.dmp	autoit_exe

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4280	4932	WerFault.exe	81
712	4932	WerFault.exe	81

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2532 wrote to memory of 4932	2532	48a4af576b88e755c0864fd82747b6f7b925b80460a85e763b37512fbea7353c.exe	81
PID 2532 wrote to memory of 4932	2532	48a4af576b88e755c0864fd82747b6f7b925b80460a85e763b37512fbea7353c.exe	81
PID 2532 wrote to memory of 4932	2532	48a4af576b88e755c0864fd82747b6f7b925b80460a85e763b37512fbea7353c.exe	81

C:\Users\Admin\AppData\Local\Temp\48a4af576b88e755c0864fd82747b6f7b925b80460a85e763b37512fbea7353c.exe
"C:\Users\Admin\AppData\Local\Temp\48a4af576b88e755c0864fd82747b6f7b925b80460a85e763b37512fbea7353c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2532
- C:\Users\Admin\AppData\Local\Temp\SYSTEM65_.exe
  C:\Users\Admin\AppData\Local\Temp/SYSTEM65_.exe
  2⤵
  - Executes dropped EXE
  PID:4932
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4932 -s 404
    3⤵
    - Program crash
    PID:4280
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4932 -s 424
    3⤵
    - Program crash
    PID:712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4932 -ip 4932
1⤵
PID:5076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4932 -ip 4932
1⤵
PID:3988

Network

MITRE ATT&CK Enterprise v6

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\Local\Temp\SYSTEM65_.exe

Filesize
75KB

MD5
4ae28d0e43a0373e12870daff836e654

SHA1
eb5e9b908ed18df34cfc3032905fa9d749b4a051

SHA256
91e75a974ac14d499dc1416763517a455b3efeeb5f56c4b1d94cfd45f341d70b

SHA512
6f2f03d6a8fb0d6c899dd8f5b343c6d2ee6ad52e2e6c0e0fda5bd07e7515810f3cbb11bfb05dea19564d18763f951a15376b4f30066281f1a0991648c0b5ccef

Download Submit
C:\Users\Admin\AppData\Local\Temp\SYSTEM65_.exe

Filesize
75KB

MD5
4ae28d0e43a0373e12870daff836e654

SHA1
eb5e9b908ed18df34cfc3032905fa9d749b4a051

SHA256
91e75a974ac14d499dc1416763517a455b3efeeb5f56c4b1d94cfd45f341d70b

SHA512
6f2f03d6a8fb0d6c899dd8f5b343c6d2ee6ad52e2e6c0e0fda5bd07e7515810f3cbb11bfb05dea19564d18763f951a15376b4f30066281f1a0991648c0b5ccef

Download Submit
memory/2532-132-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/2532-137-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/4932-136-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4932-138-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download