1274ccd9fe36960213f938646559f124fb53d84f41a50688f76adea8b5326bff

General

Target

520b89085c54a86b25a82ffd7239d884_JaffaCakes118.exe
Size

61KB
MD5

520b89085c54a86b25a82ffd7239d884
SHA1

d045e775ef444a6658a7564639a00a1ec7393330
SHA256

1274ccd9fe36960213f938646559f124fb53d84f41a50688f76adea8b5326bff
SHA512

ded2ae293b110ad3e3e908c678734855c69e61dacca1b8ed0a5e9052cb3c3868ba0532cf3665d097871032dba5526826d378de475f137f92189de65d5463055b
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFGocAX3LKew369lp2z3C:SKcR4mjD9r823FHKcR4mjD9r823FxhZR

Score

7^/10

discovery persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4700	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"	520b89085c54a86b25a82ffd7239d884_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/4904-0-0x00000000004F0000-0x0000000000507000-memory.dmp	upx
behavioral2/files/0x0008000000023caa-6.dat	upx
behavioral2/memory/4904-9-0x00000000004F0000-0x0000000000507000-memory.dmp	upx
behavioral2/memory/4700-7-0x0000000000490000-0x00000000004A7000-memory.dmp	upx
behavioral2/files/0x000e000000023a11-12.dat	upx
behavioral2/files/0x0008000000023ca7-30.dat	upx
behavioral2/memory/4700-34-0x0000000000490000-0x00000000004A7000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	520b89085c54a86b25a82ffd7239d884_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	520b89085c54a86b25a82ffd7239d884_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4904	520b89085c54a86b25a82ffd7239d884_JaffaCakes118.exe
Token: SeDebugPrivilege	4700	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4904 wrote to memory of 4700	4904	520b89085c54a86b25a82ffd7239d884_JaffaCakes118.exe	84
PID 4904 wrote to memory of 4700	4904	520b89085c54a86b25a82ffd7239d884_JaffaCakes118.exe	84
PID 4904 wrote to memory of 4700	4904	520b89085c54a86b25a82ffd7239d884_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\520b89085c54a86b25a82ffd7239d884_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\520b89085c54a86b25a82ffd7239d884_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:4904
- 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:4700

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
381KB

MD5
fe85f276e64558b09ff2656539c90089

SHA1
025905d8d7d48ed3edc6854ba77a00a065df1cda

SHA256
e1988b7c67e67bde54d07a6b16d5cbd02ef52e9b22411bdf2d0ed048bcd1cc18

SHA512
9d74711c78bbeaea324242c79f6c7e68192e8774486e13231b672c47e0bb9b43b088bb84f91b79b68962128735d6a0133a2005ef101660e51c29172f9bddf5cd

Download Submit
C:\Users\Admin\AppData\Local\Temp\4zfZBkYPRAfR70s.exe

Filesize
61KB

MD5
eb7558546cf2d20a2ada967b7dcdc082

SHA1
bc8a7d7702af1cd522e117ffec3090bd6c09a158

SHA256
74c8f651d697b399ec958e2dd1ba0cd2a5adfe2dd2f7f9c90daa6e41beae1798

SHA512
ecae5a7b1ac009dcef77ab563e5777ddef2c11ecd1c8443f3a359cfada50fe1d67c987c2d00cb410cd71cb511134b6f43a59b2a87430a1f370a20a2b6efa4e33

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/4700-7-0x0000000000490000-0x00000000004A7000-memory.dmp

Filesize
92KB

Download
memory/4700-34-0x0000000000490000-0x00000000004A7000-memory.dmp

Filesize
92KB

Download
memory/4904-0-0x00000000004F0000-0x0000000000507000-memory.dmp

Filesize
92KB

Download
memory/4904-9-0x00000000004F0000-0x0000000000507000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads