8a43490cae0afb58e438d4edcdb9af4baa2738bdc5223cb533cd4fdc7b665ac3

Analysis

max time kernel
150s
max time network
120s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
06-07-2024 15:43

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General

Target

28b2ff7055835c88c15bb865bfbd0bdc_JaffaCakes118.exe
Size

435KB
MD5

28b2ff7055835c88c15bb865bfbd0bdc
SHA1

e6ef1af7929895795dbb026be48f9c1372055c07
SHA256

8a43490cae0afb58e438d4edcdb9af4baa2738bdc5223cb533cd4fdc7b665ac3
SHA512

7f79b4f97a97c71a279cbeeecdad2210ca9fdf2653bbfde236d193e9ab60c8ae73b9b3c18be98834a0e4c761afb9b7168c279097361ae21bf95055753d184e9a
SSDEEP

6144:bjs1jQfnhLcLskObPny9zGZz4IL5q/eb80e6xdHw04k8Jb5eeZgttDnS:0O5Ln1bydgPqSBxdH945JbstDS

Score

8^/10

persistence upx

Malware Config

Signatures

Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{3YV6WYP6-7SG8-CC7G-6776-1R84CH677300}	decrypted.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{3YV6WYP6-7SG8-CC7G-6776-1R84CH677300}\StubPath = "C:\\Windows\\system32\\msn.msngr\\msnmsngr.exe Restart"	decrypted.exe

Executes dropped EXE 1 IoCs

pid	Process
2888	decrypted.exe

Loads dropped DLL 2 IoCs

pid	Process
2912	28b2ff7055835c88c15bb865bfbd0bdc_JaffaCakes118.exe
2912	28b2ff7055835c88c15bb865bfbd0bdc_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000b000000014457-4.dat	upx
behavioral1/memory/2912-10-0x00000000032C0000-0x000000000333D000-memory.dmp	upx
behavioral1/memory/2888-13-0x0000000000400000-0x000000000047D000-memory.dmp	upx
behavioral1/memory/2888-21-0x0000000000260000-0x000000000026D000-memory.dmp	upx
behavioral1/memory/2888-26-0x0000000000270000-0x000000000027D000-memory.dmp	upx
behavioral1/memory/2888-25-0x0000000000270000-0x000000000027D000-memory.dmp	upx
behavioral1/memory/2888-1980-0x0000000000400000-0x000000000047D000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 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\{3YV6WYP6-7SG8-CC7G-6776-1R84CH677300} = "C:\\Windows\\system32\\msn.msngr\\msnmsngr.exe"	decrypted.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\{3YV6WYP6-7SG8-CC7G-6776-1R84CH677300} = "C:\\Windows\\system32\\msn.msngr\\msnmsngr.exe"	decrypted.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\msn.msngr\msnmsngr.exe	decrypted.exe
File opened for modification	C:\Windows\SysWOW64\msn.msngr\msnmsngr.exe	decrypted.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2888	decrypted.exe
2888	decrypted.exe
2888	decrypted.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2888	decrypted.exe
Token: SeDebugPrivilege	2888	decrypted.exe
Token: SeDebugPrivilege	2888	decrypted.exe
Token: SeDebugPrivilege	2888	decrypted.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2912	28b2ff7055835c88c15bb865bfbd0bdc_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 2888	2912	28b2ff7055835c88c15bb865bfbd0bdc_JaffaCakes118.exe	28
PID 2912 wrote to memory of 2888	2912	28b2ff7055835c88c15bb865bfbd0bdc_JaffaCakes118.exe	28
PID 2912 wrote to memory of 2888	2912	28b2ff7055835c88c15bb865bfbd0bdc_JaffaCakes118.exe	28
PID 2912 wrote to memory of 2888	2912	28b2ff7055835c88c15bb865bfbd0bdc_JaffaCakes118.exe	28
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29
PID 2888 wrote to memory of 2868	2888	decrypted.exe	29

C:\Windows\System32\smss.exe
\SystemRoot\System32\smss.exe
1⤵
PID:260

C:\Windows\system32\csrss.exe
%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
1⤵
PID:340

C:\Windows\system32\wininit.exe
wininit.exe
1⤵
PID:388
- C:\Windows\system32\services.exe
  C:\Windows\system32\services.exe
  2⤵
  PID:484
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k DcomLaunch
    3⤵
    PID:596
  - - C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
      4⤵
      PID:2120
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k RPCSS
    3⤵
    PID:676
- - C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
    3⤵
    PID:744
- - C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
    3⤵
    PID:820
  - - C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      4⤵
      PID:1036
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs
    3⤵
    PID:860
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalService
    3⤵
    PID:972
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k NetworkService
    3⤵
    PID:280
- - C:\Windows\System32\spoolsv.exe
    C:\Windows\System32\spoolsv.exe
    3⤵
    PID:1092
- - C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    3⤵
    PID:1104
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
    3⤵
    PID:1156
- - C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
    3⤵
    PID:2712
- - C:\Windows\system32\sppsvc.exe
    C:\Windows\system32\sppsvc.exe
    3⤵
    PID:2828
- C:\Windows\system32\lsass.exe
  C:\Windows\system32\lsass.exe
  2⤵
  PID:492
- C:\Windows\system32\lsm.exe
  C:\Windows\system32\lsm.exe
  2⤵
  PID:500

C:\Windows\system32\csrss.exe
%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
1⤵
PID:400

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:436

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1064
- C:\Users\Admin\AppData\Local\Temp\28b2ff7055835c88c15bb865bfbd0bdc_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\28b2ff7055835c88c15bb865bfbd0bdc_JaffaCakes118.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2912
- - C:\Users\Admin\AppData\Local\Temp\decrypted.exe
    "C:\Users\Admin\AppData\Local\Temp\decrypted.exe"
    3⤵
    - Boot or Logon Autostart Execution: Active Setup
    - 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:2888
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      PID:2868

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Registry Run Keys / Startup Folder

T1547.001

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

\Users\Admin\AppData\Local\Temp\decrypted.exe

Filesize
363KB

MD5
c509d35ac709c4f3f8a63d3bf564e550

SHA1
5965582c2444919ea0a6ed78958abc27842d6eec

SHA256
b4f9379efc66cc460988e05ad3c21876f5524fb3f8db469c400668374411c489

SHA512
eede4de116e696b28b47130161e9b9c55e2135716245c3fcbd5558061a1be4e0eb34a3259fc041ccebd42af32a3f05117b2e2d558c91727faefd01dbd695fdf3

Download Submit
memory/260-30-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/2888-13-0x0000000000400000-0x000000000047D000-memory.dmp

Filesize
500KB

Download
memory/2888-15-0x0000000010410000-0x0000000010479000-memory.dmp

Filesize
420KB

Download
memory/2888-21-0x0000000000260000-0x000000000026D000-memory.dmp

Filesize
52KB

Download
memory/2888-26-0x0000000000270000-0x000000000027D000-memory.dmp

Filesize
52KB

Download
memory/2888-25-0x0000000000270000-0x000000000027D000-memory.dmp

Filesize
52KB

Download
memory/2888-1980-0x0000000000400000-0x000000000047D000-memory.dmp

Filesize
500KB

Download
memory/2912-10-0x00000000032C0000-0x000000000333D000-memory.dmp

Filesize
500KB

Download
memory/2912-12-0x00000000032C0000-0x000000000333D000-memory.dmp

Filesize
500KB

Download