3eeac00ea7f4165bcc97bfd2423980861587672def9679029b803e252aa65c4d

General

Target

b38b434a32ef25b5c5cde70bef6a3be5_JaffaCakes118.exe
Size

1.8MB
MD5

b38b434a32ef25b5c5cde70bef6a3be5
SHA1

bf15f1585e8676fbfd3acd972ab522a8630311dc
SHA256

3eeac00ea7f4165bcc97bfd2423980861587672def9679029b803e252aa65c4d
SHA512

a6d9230b5de597034f6aac96dc1d0d2f9bbd03c7849306a2077e959528f8bd91df9703ce9156944fec38f4abf778676df694f60484a1db978027578b14146b1f
SSDEEP

49152:dpToKhpUcKpn8xO9d021MYqD9BP/n3NHj:UKjUcKJBK21MZDXP/n9D

Score

7^/10

discovery

Malware Config

Signatures

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	kb0.136.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	kb0.136.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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	b38b434a32ef25b5c5cde70bef6a3be5_JaffaCakes118.exe

Executes dropped EXE 3 IoCs

pid	Process
408	kb0.136.exe
4736	BT Engine v5.07.exe
1500	is-QEUAB.tmp

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4820	408	WerFault.exe	84

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	BT Engine v5.07.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	is-QEUAB.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b38b434a32ef25b5c5cde70bef6a3be5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kb0.136.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3768 wrote to memory of 408	3768	b38b434a32ef25b5c5cde70bef6a3be5_JaffaCakes118.exe	84
PID 3768 wrote to memory of 408	3768	b38b434a32ef25b5c5cde70bef6a3be5_JaffaCakes118.exe	84
PID 3768 wrote to memory of 408	3768	b38b434a32ef25b5c5cde70bef6a3be5_JaffaCakes118.exe	84
PID 3768 wrote to memory of 4736	3768	b38b434a32ef25b5c5cde70bef6a3be5_JaffaCakes118.exe	85
PID 3768 wrote to memory of 4736	3768	b38b434a32ef25b5c5cde70bef6a3be5_JaffaCakes118.exe	85
PID 3768 wrote to memory of 4736	3768	b38b434a32ef25b5c5cde70bef6a3be5_JaffaCakes118.exe	85
PID 4736 wrote to memory of 1500	4736	BT Engine v5.07.exe	86
PID 4736 wrote to memory of 1500	4736	BT Engine v5.07.exe	86
PID 4736 wrote to memory of 1500	4736	BT Engine v5.07.exe	86

C:\Users\Admin\AppData\Local\Temp\b38b434a32ef25b5c5cde70bef6a3be5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b38b434a32ef25b5c5cde70bef6a3be5_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3768
- C:\Users\Admin\AppData\Local\Temp\kb0.136.exe
  "C:\Users\Admin\AppData\Local\Temp\kb0.136.exe"
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:408
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 408 -s 1036
    3⤵
    - Program crash
    PID:4820
- C:\Users\Admin\AppData\Local\Temp\BT Engine v5.07.exe
  "C:\Users\Admin\AppData\Local\Temp\BT Engine v5.07.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4736
- - C:\Users\Admin\AppData\Local\Temp\is-5BS1U.tmp\is-QEUAB.tmp
    "C:\Users\Admin\AppData\Local\Temp\is-5BS1U.tmp\is-QEUAB.tmp" /SL4 $130052 "C:\Users\Admin\AppData\Local\Temp\BT Engine v5.07.exe" 723322 50688
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 408 -ip 408
1⤵
PID:4904

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\BT Engine v5.07.exe

Filesize
913KB

MD5
e09153f89a7fee92f24192d58a453254

SHA1
723406bb4841cb02794c611515664fd9abfe3f3b

SHA256
fcdbe26ad10ff3ee32984c16f3b72cfcf32fae4c028e66dd9450c403138a25a1

SHA512
5ce34fc091455881f5d693769c1ee9430d3a49659fc03491dd46adac3a803d963e0dee0c71743240c4429b5d189adeff29c56516f67b4874e005cecf95c26b18

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-5BS1U.tmp\is-QEUAB.tmp

Filesize
572KB

MD5
0d0622f7d2fd629455a028d7e1cb1c07

SHA1
82bdfc15f188241c535d7a42f0f95c99d0913bf4

SHA256
ab0982c120a65adc3aa898af09ad923c9b896edfc52f7d206798c5fdf59d8f5a

SHA512
eb5a930c1ba85b9cdb60a65fcead39592f7a1b87985d927580bbdb9f8682087291a4eac9f5b2f7c8d4aa7abff78ce8c53dd7285bd7be8572cb65ade906e8807a

Download Submit
C:\Users\Admin\AppData\Local\Temp\kb0.136.exe

Filesize
912KB

MD5
94beee2d6abd0cbb1667fa634fd39662

SHA1
2a108abe8675e52ae76a5dbc6f8596784472e62a

SHA256
a00384a1b1b311f280f9c2f4f7b9b81a1ada1596956e753c3f148fe29cc645e2

SHA512
e6eb3183badd8d596282ba902e012069cca36318b87dd92fb0dfe569f1c28f7e55c3ff724d938edd38b867ff2041e9cb248df9e1242d45a85c382e0115ad11bc

Download Submit
memory/408-18-0x0000000000400000-0x00000000005C2000-memory.dmp

Filesize
1.8MB

Download
memory/408-43-0x0000000000400000-0x00000000005C2000-memory.dmp

Filesize
1.8MB

Download
memory/408-41-0x0000000002200000-0x000000000229A000-memory.dmp

Filesize
616KB

Download
memory/408-32-0x0000000000400000-0x00000000005C2000-memory.dmp

Filesize
1.8MB

Download
memory/408-29-0x0000000002200000-0x000000000229A000-memory.dmp

Filesize
616KB

Download
memory/408-24-0x0000000002200000-0x000000000229A000-memory.dmp

Filesize
616KB

Download
memory/1500-39-0x0000000000400000-0x000000000049D000-memory.dmp

Filesize
628KB

Download
memory/1500-45-0x0000000000400000-0x000000000049D000-memory.dmp

Filesize
628KB

Download
memory/3768-21-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/4736-31-0x0000000000401000-0x000000000040A000-memory.dmp

Filesize
36KB

Download
memory/4736-22-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4736-44-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads