830dcb8c8025e29ebae8951b8e764265d6c98fd83edf889ca3bdadda313fb9a3

General

Target

3a782d4286df1bf23a3d899ae907128a_JaffaCakes118.exe
Size

123KB
MD5

3a782d4286df1bf23a3d899ae907128a
SHA1

0162037816ae460b0a788319740ead25a960896b
SHA256

830dcb8c8025e29ebae8951b8e764265d6c98fd83edf889ca3bdadda313fb9a3
SHA512

7bd1c487dea262c4dd00d36f076d83023556c473cacba8d9a7fc21b3079b4d7f766890f9c539b5c3619579221084e80730824a71950f325003ead50ce8c70bfe
SSDEEP

3072:SKcWmjRrz3ZKcWmjRrz3TW+pIWiLURKE1G:hGyGi+sE1G

Score

7^/10

discovery persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3424	BAAvPnNDYD2kKIy.exe
4312	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"	3a782d4286df1bf23a3d899ae907128a_JaffaCakes118.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4664-0-0x00000000009C0000-0x00000000009D7000-memory.dmp	upx
behavioral2/memory/4312-7-0x0000000000740000-0x0000000000757000-memory.dmp	upx
behavioral2/memory/4664-10-0x00000000009C0000-0x00000000009D7000-memory.dmp	upx
behavioral2/files/0x0033000000023b88-8.dat	upx
behavioral2/files/0x0012000000023997-13.dat	upx
behavioral2/memory/4312-32-0x0000000000740000-0x0000000000757000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	3a782d4286df1bf23a3d899ae907128a_JaffaCakes118.exe
File created	C:\Windows\CTS.exe	CTS.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	BAAvPnNDYD2kKIy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3a782d4286df1bf23a3d899ae907128a_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4664	3a782d4286df1bf23a3d899ae907128a_JaffaCakes118.exe
Token: SeDebugPrivilege	4312	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4664 wrote to memory of 3424	4664	3a782d4286df1bf23a3d899ae907128a_JaffaCakes118.exe	84
PID 4664 wrote to memory of 3424	4664	3a782d4286df1bf23a3d899ae907128a_JaffaCakes118.exe	84
PID 4664 wrote to memory of 3424	4664	3a782d4286df1bf23a3d899ae907128a_JaffaCakes118.exe	84
PID 4664 wrote to memory of 4312	4664	3a782d4286df1bf23a3d899ae907128a_JaffaCakes118.exe	85
PID 4664 wrote to memory of 4312	4664	3a782d4286df1bf23a3d899ae907128a_JaffaCakes118.exe	85
PID 4664 wrote to memory of 4312	4664	3a782d4286df1bf23a3d899ae907128a_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\3a782d4286df1bf23a3d899ae907128a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3a782d4286df1bf23a3d899ae907128a_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:4664
- C:\Users\Admin\AppData\Local\Temp\BAAvPnNDYD2kKIy.exe
  C:\Users\Admin\AppData\Local\Temp\BAAvPnNDYD2kKIy.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3424
- 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:4312

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
b31cc3607b6244f12c9754e4ee6baf45

SHA1
ada194c6723685b226fefd8c4e32d97883b4a906

SHA256
fa7568c4068875657c9883a1e4c4d342aaad59fb8bb2f6d35349d6fef81dc59d

SHA512
ebc5065c96e440b0c398a55dd6c18cc1939cfbd83df6538a14058fb0900be1407d66168c260b7cf88bff0a881671048f383890959ebbc9d027186b8dc4bc59f1

Download Submit
C:\Users\Admin\AppData\Local\Temp\BAAvPnNDYD2kKIy.exe

Filesize
64KB

MD5
a32a382b8a5a906e03a83b4f3e5b7a9b

SHA1
11e2bdd0798761f93cce363329996af6c17ed796

SHA256
75f12ea2f30d9c0d872dade345f30f562e6d93847b6a509ba53beec6d0b2c346

SHA512
ec87dd957be21b135212454646dcabdd7ef9442cf714e2c1f6b42b81f0c3fa3b1875bde9a8b538e8a0aa2190225649c29e9ed0f25176e7659e55e422dd4efe4c

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/4312-7-0x0000000000740000-0x0000000000757000-memory.dmp

Filesize
92KB

Download
memory/4312-32-0x0000000000740000-0x0000000000757000-memory.dmp

Filesize
92KB

Download
memory/4664-0-0x00000000009C0000-0x00000000009D7000-memory.dmp

Filesize
92KB

Download
memory/4664-10-0x00000000009C0000-0x00000000009D7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads