054e50fcf67d9f72d1978d89c356d69dd6aed525430ec6a6843344c7b09d1e65

General

Target

53af0b5220eac2cad439ca93e049fcff_JaffaCakes118.exe
Size

59KB
MD5

53af0b5220eac2cad439ca93e049fcff
SHA1

2e8ddce4ac6384eda02819ecb3263a4f16070446
SHA256

054e50fcf67d9f72d1978d89c356d69dd6aed525430ec6a6843344c7b09d1e65
SHA512

3034986437cc2f5d38a7926dfd4b5163a186ca71a38d1e95d583799a948c3957da3da8ca17e8597d77e1cfb8fdaff7eb5d4f1b69c9b28075fbb83f5efde29d35
SSDEEP

1536:SKcR4mjD9r823FHKcR4mjD9r823FG8IsV:SKcWmjRrz3ZKcWmjRrz3HV

Score

7^/10

discovery persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
980	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"	53af0b5220eac2cad439ca93e049fcff_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4776-0-0x0000000000610000-0x0000000000627000-memory.dmp	upx
behavioral2/files/0x000b000000023b9f-6.dat	upx
behavioral2/memory/4776-10-0x0000000000610000-0x0000000000627000-memory.dmp	upx
behavioral2/memory/980-7-0x0000000000A20000-0x0000000000A37000-memory.dmp	upx
behavioral2/files/0x0012000000023996-13.dat	upx
behavioral2/files/0x000c000000023b3a-30.dat	upx
behavioral2/memory/980-32-0x0000000000A20000-0x0000000000A37000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	53af0b5220eac2cad439ca93e049fcff_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	53af0b5220eac2cad439ca93e049fcff_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4776	53af0b5220eac2cad439ca93e049fcff_JaffaCakes118.exe
Token: SeDebugPrivilege	980	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4776 wrote to memory of 980	4776	53af0b5220eac2cad439ca93e049fcff_JaffaCakes118.exe	84
PID 4776 wrote to memory of 980	4776	53af0b5220eac2cad439ca93e049fcff_JaffaCakes118.exe	84
PID 4776 wrote to memory of 980	4776	53af0b5220eac2cad439ca93e049fcff_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\53af0b5220eac2cad439ca93e049fcff_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\53af0b5220eac2cad439ca93e049fcff_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:4776
- 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:980

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

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
381KB

MD5
3ed62d9921237d31ff8532a25dec1697

SHA1
08b07f9e2737b52453aed9fffe34797844dca0df

SHA256
1a821a7313050b629bba6f440e596f6fd242e1edf5338738b7b26a6c6981f0a6

SHA512
0c7d0df72cf70b8f319f9f04f6ae633b21107f485117bd4f6768acc66b40dc769ee2b3652b71a64bee068a32b54af333286a7d0a5da0fa8167fa8d521b6dc303

Download Submit
C:\Users\Admin\AppData\Local\Temp\pvxk2rx6HCbQTkC.exe

Filesize
59KB

MD5
15965d8456e5e16ce3cf1bd48e00a05d

SHA1
29cb38b936ef8abc88b62f4b67994d3cb5681521

SHA256
02946529df0de294895d5ae6f402d3da22c50a06c51b851bcf2a1165958043d2

SHA512
2dc7fc81cb0e9da9322e3ae53d04abf6a8e0c6fd3f32bed85ae5d308ecb8888b5ead17a4b94941e0b20e13d0ddb02abfea307b8b877287a357411de2d35c15fb

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/980-7-0x0000000000A20000-0x0000000000A37000-memory.dmp

Filesize
92KB

Download
memory/980-32-0x0000000000A20000-0x0000000000A37000-memory.dmp

Filesize
92KB

Download
memory/4776-0-0x0000000000610000-0x0000000000627000-memory.dmp

Filesize
92KB

Download
memory/4776-10-0x0000000000610000-0x0000000000627000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads