ebf480a412696b0518b3c4aa1cc8b7a0133cf688421fbcd70ec57bf76b6b9432

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
14/07/2024, 09:38

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General

Target

45447659f2729d59f8ccf8754c5a1f6c_JaffaCakes118.exe
Size

18KB
MD5

45447659f2729d59f8ccf8754c5a1f6c
SHA1

2bfe87fc470ffbef7c3496a6dad75e1a735b2ffe
SHA256

ebf480a412696b0518b3c4aa1cc8b7a0133cf688421fbcd70ec57bf76b6b9432
SHA512

de2f5f29b58f316be83a99cb06dfdbe05b81e7f61207122de490ace1b3e2dd83be1e4be0eef73988e09d84072ac38262763e914556e5f7971645477c01b99244
SSDEEP

384:+3v8xikYTJkk22+RsgW6HcbWLoJjUpMHToRUTYOtUAblcrDY:+kvr12eFpHcbLxUpM+ByKrDY

Score

8^/10

adware discovery persistence stealer

Malware Config

Signatures

Adds policy 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\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\isamonitor.exe = "C:\\Program Files (x86)\\Internet Security\\isamonitor.exe"	isamonitor.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\explorer\run	isamonitor.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\Control Panel\International\Geo\Nation	45447659f2729d59f8ccf8754c5a1f6c_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
4868	isamonitor.exe
3948	isamini.exe

Loads dropped DLL 1 IoCs

pid	Process
4868	isamonitor.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	isamonitor.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{67982BB7-0F95-44C5-92DC-E3AF3DC19D6D}	isamonitor.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{67982BB7-0F95-44C5-92DC-E3AF3DC19D6D}\	isamonitor.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Internet Security\isauninst.exe	45447659f2729d59f8ccf8754c5a1f6c_JaffaCakes118.exe
File created	C:\Program Files (x86)\Internet Security\isamonitor.exe	45447659f2729d59f8ccf8754c5a1f6c_JaffaCakes118.exe
File created	C:\Program Files (x86)\Internet Security\isaddon.dll	isamonitor.exe
File created	C:\Program Files (x86)\Internet Security\isamini.exe	isamonitor.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 3 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\Software\Microsoft\Internet Explorer\Main	isamonitor.exe
Key created	\REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\Software\Microsoft\Internet Explorer\Search	isamonitor.exe
Key created	\REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\Software\Microsoft\Internet Explorer\SearchUrl	isamonitor.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{67982BB7-0F95-44C5-92DC-E3AF3DC19D6D}	isamonitor.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{67982BB7-0F95-44C5-92DC-E3AF3DC19D6D}\	isamonitor.exe
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{67982BB7-0F95-44C5-92DC-E3AF3DC19D6D}\InprocServer32	isamonitor.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{67982BB7-0F95-44C5-92DC-E3AF3DC19D6D}\InprocServer32\ = "C:\\Program Files (x86)\\Internet Security\\isaddon.dll"	isamonitor.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{67982BB7-0F95-44C5-92DC-E3AF3DC19D6D}\InprocServer32\ThreadingModel = "Apartment"	isamonitor.exe
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID	isamonitor.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
720	45447659f2729d59f8ccf8754c5a1f6c_JaffaCakes118.exe
720	45447659f2729d59f8ccf8754c5a1f6c_JaffaCakes118.exe
4868	isamonitor.exe
4868	isamonitor.exe
3948	isamini.exe
3948	isamini.exe
3948	isamini.exe
4868	isamonitor.exe
3948	isamini.exe
4868	isamonitor.exe
4868	isamonitor.exe
4868	isamonitor.exe
3948	isamini.exe
3948	isamini.exe
3948	isamini.exe
4868	isamonitor.exe
3948	isamini.exe
4868	isamonitor.exe
3948	isamini.exe
4868	isamonitor.exe
3948	isamini.exe
4868	isamonitor.exe
4868	isamonitor.exe
3948	isamini.exe
4868	isamonitor.exe
3948	isamini.exe
4868	isamonitor.exe
4868	isamonitor.exe
3948	isamini.exe
3948	isamini.exe
4868	isamonitor.exe
3948	isamini.exe
3948	isamini.exe
4868	isamonitor.exe
4868	isamonitor.exe
4868	isamonitor.exe
3948	isamini.exe
3948	isamini.exe
4868	isamonitor.exe
3948	isamini.exe
4868	isamonitor.exe
3948	isamini.exe
4868	isamonitor.exe
3948	isamini.exe
4868	isamonitor.exe
3948	isamini.exe
4868	isamonitor.exe
3948	isamini.exe
4868	isamonitor.exe
3948	isamini.exe
4868	isamonitor.exe
3948	isamini.exe
4868	isamonitor.exe
3948	isamini.exe
4868	isamonitor.exe
3948	isamini.exe
3948	isamini.exe
4868	isamonitor.exe
3948	isamini.exe
4868	isamonitor.exe
3948	isamini.exe
4868	isamonitor.exe
4868	isamonitor.exe
3948	isamini.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	720	45447659f2729d59f8ccf8754c5a1f6c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 720 wrote to memory of 4868	720	45447659f2729d59f8ccf8754c5a1f6c_JaffaCakes118.exe	86
PID 720 wrote to memory of 4868	720	45447659f2729d59f8ccf8754c5a1f6c_JaffaCakes118.exe	86
PID 720 wrote to memory of 4868	720	45447659f2729d59f8ccf8754c5a1f6c_JaffaCakes118.exe	86
PID 4868 wrote to memory of 3948	4868	isamonitor.exe	87
PID 4868 wrote to memory of 3948	4868	isamonitor.exe	87
PID 4868 wrote to memory of 3948	4868	isamonitor.exe	87
PID 720 wrote to memory of 1916	720	45447659f2729d59f8ccf8754c5a1f6c_JaffaCakes118.exe	89
PID 720 wrote to memory of 1916	720	45447659f2729d59f8ccf8754c5a1f6c_JaffaCakes118.exe	89
PID 720 wrote to memory of 1916	720	45447659f2729d59f8ccf8754c5a1f6c_JaffaCakes118.exe	89

C:\Users\Admin\AppData\Local\Temp\45447659f2729d59f8ccf8754c5a1f6c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\45447659f2729d59f8ccf8754c5a1f6c_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:720
- C:\Program Files (x86)\Internet Security\isamonitor.exe
  "C:\Program Files (x86)\Internet Security\isamonitor.exe"
  2⤵
  - Adds policy Run key to start application
  - Executes dropped EXE
  - Loads dropped DLL
  - Installs/modifies Browser Helper Object
  - Drops file in Program Files directory
  - Modifies Internet Explorer settings
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4868
- - C:\Program Files (x86)\Internet Security\isamini.exe
    "C:\Program Files (x86)\Internet Security\isamini.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    PID:3948
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\454476~1.EXE > nul
  2⤵
  PID:1916

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

Browser Extensions

T1176

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Internet Security\isaddon.dll

Filesize
14KB

MD5
97fef948eb337717c83af924e699cf69

SHA1
6f4eadd23e9212eab8b2b1920c8c3a0288f41c45

SHA256
d7b1576fa03f650eca3b53c713e6a396b2b477e938b2bedf258a42123cd6c0ca

SHA512
4ab79aad17a21fcfaf28b44395b79986f229d73eda813b4e1100e7044eb83f65459dcd56a62f4d921505c08e6ef68d3a982ad03d68b81be63b114ca85ae4f24d

Download Submit
C:\Program Files (x86)\Internet Security\isamini.exe

Filesize
6KB

MD5
944f7d04bda8aaa7ce79b4287d3fd395

SHA1
c65126d87de1a78a75757bfbc4a50e8234bb1b93

SHA256
c01400b3302c0a9c4cdd6f5cc6450523809ab5d5738709a0d46fbab786a898ba

SHA512
08ff2cb4700146d9bd2a1333de7e70281196b731a8706e8d818880572fa7f60f28fe06d12e56194f8495029b4cd22e754a32dcfef2071b43491dea872f6e8674

Download Submit
C:\Program Files (x86)\Internet Security\isamonitor.exe

Filesize
34KB

MD5
bb03ea39a32fafcff4c8b6b86b1d1e80

SHA1
f43c3d99da70040faa205f139ee9ab709e9b324f

SHA256
8c9a2d107eb6b3cb5635a2785d1d124878fe9a0fdccf81f28125a859c7ef2e16

SHA512
771acd56ff6e239a95710eb508441fb6924439fa191de24faea0d921081f8d2977a8d4101c3a280843a7338d756dd991dc59b23ef9a3d442e030f88b7b5cf512

Download Submit