baabd481cd3d8590c4f285d03557c02664d827771c85c32686eeff8dafc60ba8

General

Target

f51acb4e273fb3bec8fb518d2980a75e_JaffaCakes118.exe
Size

123KB
MD5

f51acb4e273fb3bec8fb518d2980a75e
SHA1

bd3fd663e07e2f5195836224094dc8340be0853e
SHA256

baabd481cd3d8590c4f285d03557c02664d827771c85c32686eeff8dafc60ba8
SHA512

2cdcf38ab08cb164e141a89736170315e0e0711d84d11590487ae2b930f126bbe871b69ceaf18535ca055617e62db83e619a19abc76eee62e8829ad6794aa59a
SSDEEP

3072:OeSQ41MZrrOwzrq5Ss9eYfphfFQkUcot3EpeBWLLNCbEJS:OVYrJrOSsRwcpKbEw

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-1-5-21-786284298-625481688-3210388970-1000\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/0x00070000000234e8-27.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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	iaccess32.exe

Executes dropped EXE 1 IoCs

pid	Process
5080	iaccess32.exe

Loads dropped DLL 1 IoCs

pid	Process
712	regsvr32.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1040-0-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x000900000002347c-3.dat	upx
behavioral2/memory/5080-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1040-7-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x00070000000234e8-27.dat	upx
behavioral2/memory/712-29-0x0000000010000000-0x0000000010047000-memory.dmp	upx
behavioral2/memory/5080-57-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 13 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Instant Access\Center\NOCREDITCARD.lnk	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110121190115\Common\module.php	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110121190115\medias\p2e_1_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110121190115\medias\p2e_2_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110121190115\medias\p2e_go_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110121190115\medias\p2e.ico	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
File created	C:\Program Files (x86)\Instant Access\Multi\20110121190115\medias\p2e_logo_2.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110121190115\medias\p2e_3_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110121190115\dialerexe.ini	iaccess32.exe
File opened for modification	C:\Program Files (x86)\Instant Access\Multi\20110121190115\dialerexe.ini	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110121190115\instant access.exe	iaccess32.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File created	C:\Windows\iaccess32.exe	f51acb4e273fb3bec8fb518d2980a75e_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	f51acb4e273fb3bec8fb518d2980a75e_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
2700	regedit.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1040	f51acb4e273fb3bec8fb518d2980a75e_JaffaCakes118.exe
5080	iaccess32.exe
5080	iaccess32.exe
5080	iaccess32.exe
5080	iaccess32.exe
5080	iaccess32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1040 wrote to memory of 5080	1040	f51acb4e273fb3bec8fb518d2980a75e_JaffaCakes118.exe	82
PID 1040 wrote to memory of 5080	1040	f51acb4e273fb3bec8fb518d2980a75e_JaffaCakes118.exe	82
PID 1040 wrote to memory of 5080	1040	f51acb4e273fb3bec8fb518d2980a75e_JaffaCakes118.exe	82
PID 5080 wrote to memory of 2700	5080	iaccess32.exe	83
PID 5080 wrote to memory of 2700	5080	iaccess32.exe	83
PID 5080 wrote to memory of 2700	5080	iaccess32.exe	83
PID 5080 wrote to memory of 712	5080	iaccess32.exe	84
PID 5080 wrote to memory of 712	5080	iaccess32.exe	84
PID 5080 wrote to memory of 712	5080	iaccess32.exe	84

C:\Users\Admin\AppData\Local\Temp\f51acb4e273fb3bec8fb518d2980a75e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f51acb4e273fb3bec8fb518d2980a75e_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1040
- 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:5080
- - 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:2700
- - 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:712

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p -s TapiSrv
1⤵
PID:452

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
f9a28e35533fd7292e17e0b76efdc9b6

SHA1
2ad63159ebe2ae2f6d8c85fbc02ba9434d7551aa

SHA256
557b534cfc7ad5b2647c72f82b24358f6944743cfdb4dcb4f38ef444400953db

SHA512
df197f2709e80b599e4f2fef37a473f17c27f4a96fa62ae1fa254c7a1e9d02ba4bb25bc37186af102593ec63528d380d0dfe12981d5ec377841802b6ef2db588

Download Submit
C:\Program Files (x86)\Instant Access\Multi\20110121190115\dialerexe.ini

Filesize
668B

MD5
390d218bf9c5153ae090dd0115c239e3

SHA1
09f25370ea85856190e4f2451f8528a6dee37b3c

SHA256
2fbcbaa6545a421463d9931361add4efc7251914b38296b06ab5767cda150362

SHA512
938fdc8c188a625c89fea87fe777104a183e3c23c36f24f50f06951c8a40e2925e4215ea999229400c5f655987715b532416e38b67651f6ded2b95339148d511

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
123KB

MD5
777b1af783f20d60c032d6ff3182b783

SHA1
a9b7436e55cb247aad3366413b4d46d2051472b1

SHA256
b9dc5331d97d4c449af94df839a45fc1ceb63de78ddf1565441f17c031462015

SHA512
50c53926eb3c7e1e3bc8518b82a90bc2aa0d4af70c0d24cc6ceacb6fd15d0b0cf5428eb26f982266fd9cf012d7b9ab2450a13dfd98c76a41bb28e24d2bc163c9

Download Submit
C:\Windows\tmlpcert2007

Filesize
6KB

MD5
b103757bc3c714123b5efa26ff96a915

SHA1
991d6694c71736b59b9486339be44ae5e2b66fef

SHA256
eef8937445f24c2bcbe101419be42694e0e38628653a755ab29ecba357d81d48

SHA512
d04f2ab14ad4d3e06ea357b4c810515d73b32f2650533a5895ebf5d14b4b697752f25c0c371372e00faab661c0b051c33b8c25bf1226f30be5d6b8727dea81e1

Download Submit
memory/712-29-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/1040-0-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1040-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/5080-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/5080-57-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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