d5a827d1ff9a96f4ed2b2f0f4bd11545f8f13796d76e7562b550e8d8a660b304

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
17/04/2024, 23:01

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General

Target

f6c2c71c62029e3582df0215eb6f7038_JaffaCakes118.exe
Size

209KB
MD5

f6c2c71c62029e3582df0215eb6f7038
SHA1

7cd487c156d690de90bec954cdac5ae3d5cc551f
SHA256

d5a827d1ff9a96f4ed2b2f0f4bd11545f8f13796d76e7562b550e8d8a660b304
SHA512

2538a15da281d642f4c959361307fa44f802a646992f8167477fafebd31873fe9bb219fbd5f4cde18f136382a59d6613f43104b206f16c0c80e2420ff93cec89
SSDEEP

6144:+N2cx8XUGoVsGOiV3ki8VTU0uHsBR/NhW:ILfJ7OiVJ8VTUxmh

Score

7^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4824	msnscr.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1480-0-0x0000000000400000-0x00000000004D0000-memory.dmp	upx
behavioral2/files/0x0009000000023285-3.dat	upx
behavioral2/memory/1480-5-0x0000000000400000-0x00000000004D0000-memory.dmp	upx
behavioral2/memory/4824-6-0x0000000000400000-0x00000000004D0000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\msnscr.exe = "C:\\Windows\\system32\\msnscr.exe"	f6c2c71c62029e3582df0215eb6f7038_JaffaCakes118.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\msnscr.exe	msnscr.exe
File created	C:\Windows\SysWOW64\msnscr.exe	f6c2c71c62029e3582df0215eb6f7038_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\msnscr.exe	f6c2c71c62029e3582df0215eb6f7038_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1480	f6c2c71c62029e3582df0215eb6f7038_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1480	f6c2c71c62029e3582df0215eb6f7038_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4824	msnscr.exe
Token: SeIncBasePriorityPrivilege	4824	msnscr.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1480 wrote to memory of 4824	1480	f6c2c71c62029e3582df0215eb6f7038_JaffaCakes118.exe	91
PID 1480 wrote to memory of 4824	1480	f6c2c71c62029e3582df0215eb6f7038_JaffaCakes118.exe	91
PID 1480 wrote to memory of 4824	1480	f6c2c71c62029e3582df0215eb6f7038_JaffaCakes118.exe	91

C:\Users\Admin\AppData\Local\Temp\f6c2c71c62029e3582df0215eb6f7038_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f6c2c71c62029e3582df0215eb6f7038_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1480
- C:\Windows\SysWOW64\msnscr.exe
  C:\Windows\system32\msnscr.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  PID:4824

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1416 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:8
1⤵
PID:4380

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\msnscr.exe

Filesize
209KB

MD5
f6c2c71c62029e3582df0215eb6f7038

SHA1
7cd487c156d690de90bec954cdac5ae3d5cc551f

SHA256
d5a827d1ff9a96f4ed2b2f0f4bd11545f8f13796d76e7562b550e8d8a660b304

SHA512
2538a15da281d642f4c959361307fa44f802a646992f8167477fafebd31873fe9bb219fbd5f4cde18f136382a59d6613f43104b206f16c0c80e2420ff93cec89

Download Submit
memory/1480-0-0x0000000000400000-0x00000000004D0000-memory.dmp

Filesize
832KB

Download
memory/1480-5-0x0000000000400000-0x00000000004D0000-memory.dmp

Filesize
832KB

Download
memory/4824-6-0x0000000000400000-0x00000000004D0000-memory.dmp

Filesize
832KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads