76e8f5382b1b667c44ebfa727e520ab13f759f0cddc012a04478a06411c77e58

General

Target

a71406e98f79cd995b5efcc5d117733f_JaffaCakes118.exe
Size

121KB
MD5

a71406e98f79cd995b5efcc5d117733f
SHA1

3b0570943ae442be351e0b2f8163907eda12917f
SHA256

76e8f5382b1b667c44ebfa727e520ab13f759f0cddc012a04478a06411c77e58
SHA512

31b2cec06929e028282f78b2d5e625fbddb9b3f12292c7da5dec2095ace953de975c42a1bb28355f3fc62ffef018b4593fdf4c747ee9e21909db3c09ebebed61
SSDEEP

3072:ueSQ41MZrrOwzrq5Ss9eYfphfFQkUcot3EpeBWLLkr:uVYrJrOSsRwcpqr

Score

8^/10

Malware Config

Signatures

Manipulates Digital Signatures 1 TTPs 1 IoCs

Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.

SIP and Trust Provider Hijacking

T1553.003

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\SystemCertificates\TrustedPublisher\Certificates\62119EF862C6B3A0D853419B87EB3E2F6C78640A\Blob = 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	regedit.exe

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0007000000023448-23.dat	acprotect

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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	iaccess32.exe

Executes dropped EXE 1 IoCs

pid	Process
2672	iaccess32.exe

Loads dropped DLL 1 IoCs

pid	Process
2844	regsvr32.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3936-0-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x0009000000023433-3.dat	upx
behavioral2/memory/2672-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/3936-6-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x0007000000023448-23.dat	upx
behavioral2/memory/2844-25-0x0000000010000000-0x0000000010047000-memory.dmp	upx
behavioral2/memory/2672-53-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\egaccess4_1071.dll	iaccess32.exe

Drops file in Program Files directory 9 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Instant Access\Multi\20110121030102\instant access.exe	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Center\NoCreditCard.lnk	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110121030102\medias\dialer.ico	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110121030102\js\js_api_dialer.php	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110121030102\dialerexe.ini	iaccess32.exe
File opened for modification	C:\Program Files (x86)\Instant Access\Multi\20110121030102\dialerexe.ini	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110121030102\Common\module.php	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\DesktopIcons\NoCreditCard.lnk	iaccess32.exe
File opened for modification	C:\Program Files (x86)\Instant Access\Center\NoCreditCard.lnk	iaccess32.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File created	C:\Windows\dialexe.zl	iaccess32.exe
File created	C:\Windows\dialexe.epk	iaccess32.exe
File created	C:\Windows\dialerexe.ini	iaccess32.exe
File created	C:\Windows\egdhtm_pack.epk	iaccess32.exe
File created	C:\Windows\iaccess32.exe	a71406e98f79cd995b5efcc5d117733f_JaffaCakes118.exe
File created	C:\Windows\tmlpcert2007	iaccess32.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a71406e98f79cd995b5efcc5d117733f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iaccess32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regedit.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\À	iaccess32.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{413E282B-C32A-4717-A0F3-4F2E6FE25F83}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{413E282B-C32A-4717-A0F3-4F2E6FE25F83}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{413E282B-C32A-4717-A0F3-4F2E6FE25F83}\InprocServer32\ = "C:\\Windows\\SysWow64\\egaccess4_1071.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{413E282B-C32A-4717-A0F3-4F2E6FE25F83}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe

Runs regedit.exe 1 IoCs

pid	Process
4328	regedit.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3936	a71406e98f79cd995b5efcc5d117733f_JaffaCakes118.exe
2672	iaccess32.exe
2672	iaccess32.exe
2672	iaccess32.exe
2672	iaccess32.exe
2672	iaccess32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3936 wrote to memory of 2672	3936	a71406e98f79cd995b5efcc5d117733f_JaffaCakes118.exe	84
PID 3936 wrote to memory of 2672	3936	a71406e98f79cd995b5efcc5d117733f_JaffaCakes118.exe	84
PID 3936 wrote to memory of 2672	3936	a71406e98f79cd995b5efcc5d117733f_JaffaCakes118.exe	84
PID 2672 wrote to memory of 4328	2672	iaccess32.exe	85
PID 2672 wrote to memory of 4328	2672	iaccess32.exe	85
PID 2672 wrote to memory of 4328	2672	iaccess32.exe	85
PID 2672 wrote to memory of 2844	2672	iaccess32.exe	86
PID 2672 wrote to memory of 2844	2672	iaccess32.exe	86
PID 2672 wrote to memory of 2844	2672	iaccess32.exe	86

C:\Users\Admin\AppData\Local\Temp\a71406e98f79cd995b5efcc5d117733f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a71406e98f79cd995b5efcc5d117733f_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3936
- C:\Windows\iaccess32.exe
  C:\Windows\iaccess32.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Drops file in System32 directory
  - Drops file in Program Files directory
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2672
- - C:\Windows\SysWOW64\regedit.exe
    "C:\Windows\System32\regedit.exe" /s C:\Windows\tmlpcert2007
    3⤵
    - Manipulates Digital Signatures
    - System Location Discovery: System Language Discovery
    - Runs regedit.exe
    PID:4328
- - C:\Windows\SysWOW64\regsvr32.exe
    regsvr32.exe /s "C:\Windows\system32\egaccess4_1071.dll"
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    PID:2844

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p -s TapiSrv
1⤵
PID:216

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Subvert Trust Controls

1

T1553

SIP and Trust Provider Hijacking

1

T1553.003

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Instant Access\DesktopIcons\NoCreditCard.lnk

Filesize
2KB

MD5
202ab82e8f301cb1a811f6eced509eb2

SHA1
1a5fa788f649f4a651c5cdd70a6f2c508050e02a

SHA256
db48a944c52b5db84a84cc7d1948ce6cc0a461e1ac13817966d8044f840526d3

SHA512
139748adc726bb39390a82915b0133d9f2616e0ea9c4e405369903c64f39ab2cfb3cc1425410b9fd18a9ede8669a03fa9c96294023f8c8b6e37d2457e0c804b6

Download Submit
C:\Program Files (x86)\Instant Access\Multi\20110121030102\dialerexe.ini

Filesize
615B

MD5
205e3c80f53a5f05614e113bf85f4d73

SHA1
f2e55af3ce1c1d49c0bc17576122d30a69beef46

SHA256
9c0f976f3ed4034cead5b1ed2ece17629319efb2c9bb69b20499faaca13ed56b

SHA512
2cd02351695fe2c42a611586628d4145eff3b93ed8ec69e8403aeb16e49c8fd4e65f48228767495c01eed699951df94edb7adafb604407381c6e8bfd183b7250

Download Submit
C:\Windows\SysWOW64\egaccess4_1071.dll

Filesize
76KB

MD5
b83f652ffa76451ae438954f89c02f62

SHA1
b3ba0014dd16cee5f6d4cfe7e28b2d5de79dc6dd

SHA256
f601991aa00cbe7001197affc0e3854ab76c51c05b9a6ca3e3f708fed876c32f

SHA512
965172a5ecd070ea6707ec9985ee3c135c06534561b90ae233e8049b247d87d529b8280f0faf2b0ed933f59c68844414726fa80c4d3119cffa4fdd1cb60eab83

Download Submit
C:\Windows\iaccess32.exe

Filesize
121KB

MD5
d2843db745fca627f161da1476c5e158

SHA1
02476e9d1f87c998cd6195f8de0302830a1e3615

SHA256
7693352e1883b3f5d53705120875c5a8f2e4400f357ca87ceabb515fb9a66189

SHA512
e0faf89a90ca4d9af9149c7065e38914f44fac16489bd0ecdbbc7ed80a6fee1d86e7f8c59c8199d223e79ce8ccac802fd7ebc7975aa6750b7a9928b65728bbbf

Download Submit
C:\Windows\tmlpcert2007

Filesize
6KB

MD5
b103757bc3c714123b5efa26ff96a915

SHA1
991d6694c71736b59b9486339be44ae5e2b66fef

SHA256
eef8937445f24c2bcbe101419be42694e0e38628653a755ab29ecba357d81d48

SHA512
d04f2ab14ad4d3e06ea357b4c810515d73b32f2650533a5895ebf5d14b4b697752f25c0c371372e00faab661c0b051c33b8c25bf1226f30be5d6b8727dea81e1

Download Submit
memory/2672-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2672-53-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2844-25-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/3936-0-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3936-6-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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