11d37c2ae5f056560a6f90a6d6fbd554763a08ef5453ee914e301dfc7b4644b0

General

Target

0702a47469fb24097101aae1c6c6cdb2_JaffaCakes118.exe
Size

115KB
MD5

0702a47469fb24097101aae1c6c6cdb2
SHA1

2651e587be799449519e6007d0e8022a242523be
SHA256

11d37c2ae5f056560a6f90a6d6fbd554763a08ef5453ee914e301dfc7b4644b0
SHA512

5cb1a224517f2944208df39a031337755ca9a9282e2d548f326d6685adeff9693f5422ed8ca8e30f2287a838e14e1ae66b9152487495f8fd93de10558aad149d
SSDEEP

3072:SKcWmjRrz3ZKcWmjRrz31BJEGY075ySUy7ohgBsLHy1W:hGyGRdYU7UAqy8

Score

7^/10

discovery persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3548	R5BlN4gj69VqRrf.exe
2976	CTS.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds 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\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	0702a47469fb24097101aae1c6c6cdb2_JaffaCakes118.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1856-0-0x0000000000040000-0x0000000000057000-memory.dmp	upx
behavioral2/files/0x0008000000023443-6.dat	upx
behavioral2/memory/2976-7-0x0000000000380000-0x0000000000397000-memory.dmp	upx
behavioral2/memory/1856-9-0x0000000000040000-0x0000000000057000-memory.dmp	upx
behavioral2/files/0x000700000002336c-14.dat	upx
behavioral2/memory/2976-40-0x0000000000380000-0x0000000000397000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	0702a47469fb24097101aae1c6c6cdb2_JaffaCakes118.exe
File created	C:\Windows\CTS.exe	CTS.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	CTS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0702a47469fb24097101aae1c6c6cdb2_JaffaCakes118.exe

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1856	0702a47469fb24097101aae1c6c6cdb2_JaffaCakes118.exe
Token: SeDebugPrivilege	2976	CTS.exe
Token: SeBackupPrivilege	3176	dw20.exe
Token: SeBackupPrivilege	3176	dw20.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1856 wrote to memory of 3548	1856	0702a47469fb24097101aae1c6c6cdb2_JaffaCakes118.exe	82
PID 1856 wrote to memory of 3548	1856	0702a47469fb24097101aae1c6c6cdb2_JaffaCakes118.exe	82
PID 1856 wrote to memory of 2976	1856	0702a47469fb24097101aae1c6c6cdb2_JaffaCakes118.exe	84
PID 1856 wrote to memory of 2976	1856	0702a47469fb24097101aae1c6c6cdb2_JaffaCakes118.exe	84
PID 1856 wrote to memory of 2976	1856	0702a47469fb24097101aae1c6c6cdb2_JaffaCakes118.exe	84
PID 3548 wrote to memory of 3176	3548	R5BlN4gj69VqRrf.exe	85
PID 3548 wrote to memory of 3176	3548	R5BlN4gj69VqRrf.exe	85

C:\Users\Admin\AppData\Local\Temp\0702a47469fb24097101aae1c6c6cdb2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0702a47469fb24097101aae1c6c6cdb2_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1856
- C:\Users\Admin\AppData\Local\Temp\R5BlN4gj69VqRrf.exe
  C:\Users\Admin\AppData\Local\Temp\R5BlN4gj69VqRrf.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:3548
- - C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
    dw20.exe -x -s 812
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:3176
- C:\Windows\CTS.exe
  "C:\Windows\CTS.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2976

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
382KB

MD5
ca01b90bb63e0e68f25845b13ffe9c41

SHA1
1bb6e4b014a7780785bf010f9d0f24d0f949b3b4

SHA256
ae7724f835c848719fdb251b9f6a5778e9bf05c9f50af22345a52e08921b6450

SHA512
97ed6bf15e09ffe369a9c66a17e5bcc0a7b4217c8849a55a0771fc4891502872e23fb005a38f6c4e06f72e7a0ed6a474691203c7e48ca3b71204f769decac283

Download Submit
C:\Users\Admin\AppData\Local\Temp\R5BlN4gj69VqRrf.exe

Filesize
56KB

MD5
e115521ba14b75f53dcdff087ec6898f

SHA1
87103a892bb514a93d485fba221bacb9da3aae25

SHA256
59b284d0ad4c2634938e70fae67d9048bd98422d052fbd745a9b80b5fae7ae29

SHA512
ab3d097bcf11bf7327a28124052b210f5fb13b9bfb9b7376cae1ba5c30182a330506935288a7fe06b7e3fdd82b57f5c31638f1c301738342819c772b346fa35a

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/1856-0-0x0000000000040000-0x0000000000057000-memory.dmp

Filesize
92KB

Download
memory/1856-9-0x0000000000040000-0x0000000000057000-memory.dmp

Filesize
92KB

Download
memory/2976-7-0x0000000000380000-0x0000000000397000-memory.dmp

Filesize
92KB

Download
memory/2976-40-0x0000000000380000-0x0000000000397000-memory.dmp

Filesize
92KB

Download
memory/3548-24-0x00007FFCB1735000-0x00007FFCB1736000-memory.dmp

Filesize
4KB

Download
memory/3548-27-0x00007FFCB1480000-0x00007FFCB1E21000-memory.dmp

Filesize
9.6MB

Download
memory/3548-28-0x00007FFCB1480000-0x00007FFCB1E21000-memory.dmp

Filesize
9.6MB

Download
memory/3548-35-0x00007FFCB1480000-0x00007FFCB1E21000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads