f90b08d3b88747529a8f499e5e7b0830e4a00ffae737bf5d68fbd37a3447c420

General

Target

a9e408ec9abbfdac7f963643923f2a5f_JaffaCakes118.exe
Size

185KB
MD5

a9e408ec9abbfdac7f963643923f2a5f
SHA1

cce3f30db965a960dff9281a61a278c0aaa50a8a
SHA256

f90b08d3b88747529a8f499e5e7b0830e4a00ffae737bf5d68fbd37a3447c420
SHA512

3924d5ad35a355100d1df8487bb043cf7293e3793bdd3f9ea2441e155622b7d528b98cf5793413f5131846c5e7a7ab6308713295d20ed82ff6e929845b58c150
SSDEEP

3072:EamFnQYUM6m3SP2sVSdEnfWZN3cbgonk9sX1qalYuhLJNdjQVVTuP5J85Vi9iqVv:Eazq3aipalYuhoao5sQkzz

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-1-5-21-355097885-2402257403-2971294179-1000\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/0x0007000000023463-22.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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	iaccess32.exe

Executes dropped EXE 1 IoCs

pid	Process
640	iaccess32.exe

Loads dropped DLL 1 IoCs

pid	Process
3972	regsvr32.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4296-0-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x0003000000022ab1-3.dat	upx
behavioral2/memory/640-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4296-6-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x0007000000023463-22.dat	upx
behavioral2/memory/3972-24-0x0000000010000000-0x0000000010047000-memory.dmp	upx
behavioral2/memory/640-51-0x0000000000400000-0x000000000042E000-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\20110207220211\medias\dialer.ico	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110207220211\js\js_api_dialer.php	iaccess32.exe
File opened for modification	C:\Program Files (x86)\Instant Access\Multi\20110207220211\dialerexe.ini	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110207220211\instant access.exe	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110207220211\Common\module.php	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\DesktopIcons\NoCreditCard.lnk	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Center\NoCreditCard.lnk	iaccess32.exe
File opened for modification	C:\Program Files (x86)\Instant Access\Center\NoCreditCard.lnk	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110207220211\dialerexe.ini	iaccess32.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File created	C:\Windows\iaccess32.exe	a9e408ec9abbfdac7f963643923f2a5f_JaffaCakes118.exe
File created	C:\Windows\tmlpcert2007	iaccess32.exe
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

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	iaccess32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regedit.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a9e408ec9abbfdac7f963643923f2a5f_JaffaCakes118.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
2012	regedit.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4296	a9e408ec9abbfdac7f963643923f2a5f_JaffaCakes118.exe
640	iaccess32.exe
640	iaccess32.exe
640	iaccess32.exe
640	iaccess32.exe
640	iaccess32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4296 wrote to memory of 640	4296	a9e408ec9abbfdac7f963643923f2a5f_JaffaCakes118.exe	86
PID 4296 wrote to memory of 640	4296	a9e408ec9abbfdac7f963643923f2a5f_JaffaCakes118.exe	86
PID 4296 wrote to memory of 640	4296	a9e408ec9abbfdac7f963643923f2a5f_JaffaCakes118.exe	86
PID 640 wrote to memory of 2012	640	iaccess32.exe	87
PID 640 wrote to memory of 2012	640	iaccess32.exe	87
PID 640 wrote to memory of 2012	640	iaccess32.exe	87
PID 640 wrote to memory of 3972	640	iaccess32.exe	88
PID 640 wrote to memory of 3972	640	iaccess32.exe	88
PID 640 wrote to memory of 3972	640	iaccess32.exe	88

C:\Users\Admin\AppData\Local\Temp\a9e408ec9abbfdac7f963643923f2a5f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a9e408ec9abbfdac7f963643923f2a5f_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4296
- 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:640
- - 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:2012
- - 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:3972

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p -s TapiSrv
1⤵
PID:5060

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
b9eca0d0d27a967d8afd16a75efc798f

SHA1
258a8ad8a64ce88c61a08bc968271c2b16d7adc2

SHA256
c8b0a5a69610c1e21b4651e6755c8b657bb38e819e2ec0673ef1e9eb4f35606d

SHA512
6bcb9be2306598694109966356d38602d288e0ff844f86a2e78f736e8db54b7179ce97d48fdc416ca6243b09618251b2dfa674fad5f89199c897f42775f7a0c5

Download Submit
C:\Program Files (x86)\Instant Access\Multi\20110207220211\dialerexe.ini

Filesize
616B

MD5
a9cbb2504fd9f52fe2d6b9c1fde5d189

SHA1
948576d6c6d31e36a989c8f92e04cd8eb89e6c48

SHA256
a453d6e5bf3056161e481cbc3caf77da7f128abe61b898825d5cd23d5d36e6e8

SHA512
415f2c5ed47a55a656821572b9e7d411a5457b7cbd7761ad8a9255ab9c54d3372838f3753caa90b5411ce59efe200e4b9c3f50c0b364fd5bbf4ede1ff43aaf23

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
185KB

MD5
d782f612681b5ff83e8b8b5edab88366

SHA1
7c6a58c69fd1c861b8a0fc65beafa6c2d075e822

SHA256
89d00635b9def3aab53acb669a20cff6b3fc567bfd9d3e4306bdce4dda8c9eca

SHA512
26169cbebfd461929d155dae89c422667a63290a6c088e372974610119a71bf9213e662e11cf2044c9d869bac0be994b3d06daee1c0149e513936f652f82512b

Download Submit
C:\Windows\tmlpcert2007

Filesize
6KB

MD5
b103757bc3c714123b5efa26ff96a915

SHA1
991d6694c71736b59b9486339be44ae5e2b66fef

SHA256
eef8937445f24c2bcbe101419be42694e0e38628653a755ab29ecba357d81d48

SHA512
d04f2ab14ad4d3e06ea357b4c810515d73b32f2650533a5895ebf5d14b4b697752f25c0c371372e00faab661c0b051c33b8c25bf1226f30be5d6b8727dea81e1

Download Submit
memory/640-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/640-51-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3972-24-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/4296-0-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4296-6-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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