8de03ca5bf0008fd86fd5d907eb79a9929fe85a0094f6cf09d4e1b2ff0ea83b7

Analysis

max time kernel
26s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
12/10/2022, 16:19

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General

Target

8de03ca5bf0008fd86fd5d907eb79a9929fe85a0094f6cf09d4e1b2ff0ea83b7.exe
Size

119KB
MD5

62ef00a0a35aefe1cc8d66938fffaf9d
SHA1

1d4fc5a16b486a4d055a11540a77843b0108b7a8
SHA256

8de03ca5bf0008fd86fd5d907eb79a9929fe85a0094f6cf09d4e1b2ff0ea83b7
SHA512

c3f67a12ed1310b1c3984640d4891789f3bc83460d1eaf04e9288376b9afc3887b3ca0f4d9eb0c33f6a23bf87778d95e72494a6993d30087b1c38fdb0d50ee9f
SSDEEP

1536:XY3TDoCycKT8B5CYpZ5gNXB9XUXDX/GknY:+3ryaB5C8gNXB9kT+knY

Score

8^/10

upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2012-55-0x0000000000400000-0x000000000041F000-memory.dmp	upx
behavioral1/memory/2012-57-0x0000000000400000-0x000000000041F000-memory.dmp	upx

Deletes itself 1 IoCs

pid	Process
960	cmd.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\microsoft	8de03ca5bf0008fd86fd5d907eb79a9929fe85a0094f6cf09d4e1b2ff0ea83b7.exe
File created	C:\Windows\System32\microsoft\serv\service.exe	8de03ca5bf0008fd86fd5d907eb79a9929fe85a0094f6cf09d4e1b2ff0ea83b7.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2012	8de03ca5bf0008fd86fd5d907eb79a9929fe85a0094f6cf09d4e1b2ff0ea83b7.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 960	2012	8de03ca5bf0008fd86fd5d907eb79a9929fe85a0094f6cf09d4e1b2ff0ea83b7.exe	28
PID 2012 wrote to memory of 960	2012	8de03ca5bf0008fd86fd5d907eb79a9929fe85a0094f6cf09d4e1b2ff0ea83b7.exe	28
PID 2012 wrote to memory of 960	2012	8de03ca5bf0008fd86fd5d907eb79a9929fe85a0094f6cf09d4e1b2ff0ea83b7.exe	28
PID 2012 wrote to memory of 960	2012	8de03ca5bf0008fd86fd5d907eb79a9929fe85a0094f6cf09d4e1b2ff0ea83b7.exe	28

C:\Users\Admin\AppData\Local\Temp\8de03ca5bf0008fd86fd5d907eb79a9929fe85a0094f6cf09d4e1b2ff0ea83b7.exe
"C:\Users\Admin\AppData\Local\Temp\8de03ca5bf0008fd86fd5d907eb79a9929fe85a0094f6cf09d4e1b2ff0ea83b7.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\8DE03C~1.EXE > nul
  2⤵
  - Deletes itself
  PID:960

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

memory/2012-54-0x00000000758C1000-0x00000000758C3000-memory.dmp

Filesize
8KB

Download
memory/2012-55-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2012-57-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download