bbc6274f10390fbdf686d182ca323e9a59d6621cd27e381b8bbef254ef297255

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
16/04/2024, 00:37

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General

Target

f249879449ff4f6dff7d047dae2805ab_JaffaCakes118.exe
Size

21KB
MD5

f249879449ff4f6dff7d047dae2805ab
SHA1

4f44bcc6c49339c4f0eab65c3741311a7b3c3311
SHA256

bbc6274f10390fbdf686d182ca323e9a59d6621cd27e381b8bbef254ef297255
SHA512

244e5216090433c7e5cf6295f6d123f08e67f4d61a5d86d8b3acd80dd259f4f5080831d19321bf6fd57066397d21232e9ae8955aae71eee94dd0c7e3b60365b9
SSDEEP

384:aB1YGNFPo+sc/lJ68E2Gc9J/pGmOJel7BQCVdjllF:s1YM/lke/yJKQYll

Score

7^/10

persistence upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2136	msccrt.exe

Executes dropped EXE 1 IoCs

pid	Process
2136	msccrt.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2368-0-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral1/files/0x000d00000001224f-6.dat	upx
behavioral1/memory/2136-8-0x0000000000400000-0x000000000040E000-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\msccrt = "C:\\Windows\\msccrt.exe"	msccrt.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\msccrt.dll	msccrt.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\msccrt.exe	f249879449ff4f6dff7d047dae2805ab_JaffaCakes118.exe
File opened for modification	C:\Windows\msccrt.exe	f249879449ff4f6dff7d047dae2805ab_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2136	msccrt.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2368	f249879449ff4f6dff7d047dae2805ab_JaffaCakes118.exe
Token: SeDebugPrivilege	2136	msccrt.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2136	2368	f249879449ff4f6dff7d047dae2805ab_JaffaCakes118.exe	28
PID 2368 wrote to memory of 2136	2368	f249879449ff4f6dff7d047dae2805ab_JaffaCakes118.exe	28
PID 2368 wrote to memory of 2136	2368	f249879449ff4f6dff7d047dae2805ab_JaffaCakes118.exe	28
PID 2368 wrote to memory of 2136	2368	f249879449ff4f6dff7d047dae2805ab_JaffaCakes118.exe	28
PID 2136 wrote to memory of 1192	2136	msccrt.exe	21
PID 2136 wrote to memory of 1192	2136	msccrt.exe	21

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1192
- C:\Users\Admin\AppData\Local\Temp\f249879449ff4f6dff7d047dae2805ab_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f249879449ff4f6dff7d047dae2805ab_JaffaCakes118.exe"
  2⤵
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2368
- - C:\Windows\msccrt.exe
    C:\Windows\msccrt.exe @C:\Users\Admin\AppData\Local\Temp\f249879449ff4f6dff7d047dae2805ab_JaffaCakes118.exe@2368
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Adds Run key to start application
    - Drops file in System32 directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2136

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

Replay Monitor

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Downloads

C:\Windows\msccrt.exe

Filesize
21KB

MD5
f249879449ff4f6dff7d047dae2805ab

SHA1
4f44bcc6c49339c4f0eab65c3741311a7b3c3311

SHA256
bbc6274f10390fbdf686d182ca323e9a59d6621cd27e381b8bbef254ef297255

SHA512
244e5216090433c7e5cf6295f6d123f08e67f4d61a5d86d8b3acd80dd259f4f5080831d19321bf6fd57066397d21232e9ae8955aae71eee94dd0c7e3b60365b9

Download Submit
memory/1192-11-0x0000000002540000-0x0000000002541000-memory.dmp

Filesize
4KB

Download
memory/2136-8-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2368-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2368-7-0x00000000003D0000-0x00000000003DE000-memory.dmp

Filesize
56KB

Download