6685e65af7eef43313870f946aad404f6405b7abb3fafe9db495f987cf330f1e

General

Target

524515bcbb189d94ae0a3b48fa8f1622_JaffaCakes118.exe
Size

1.8MB
MD5

524515bcbb189d94ae0a3b48fa8f1622
SHA1

fb5fa3b9341a22981b150cc0fae0a24fddad5ed1
SHA256

6685e65af7eef43313870f946aad404f6405b7abb3fafe9db495f987cf330f1e
SHA512

a6917d2c44ae6f84fe6ac0fa3dae8de7fde9aad56742a33a611bf79375a3dab5c539084f415f5f7c69ac61c62e4610d5285dfa7900686f022e0a4f33435165c3
SSDEEP

49152:S92nADrGFOsHJMdwvluzYLq1NE1ACwKbaShgnqzVfVRzWC:iiFD68u0GU1RnhhgnIVt4C

Score

7^/10

discovery persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
3680	A0fWjnBs8u3CSPW.exe
3552	CTS.exe
3732	A0fWjnBs8u3CSPW.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"	524515bcbb189d94ae0a3b48fa8f1622_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3468-0-0x00000000003B0000-0x00000000003C7000-memory.dmp	upx
behavioral2/files/0x0008000000023c90-7.dat	upx
behavioral2/memory/3552-12-0x0000000000C60000-0x0000000000C77000-memory.dmp	upx
behavioral2/memory/3468-17-0x00000000003B0000-0x00000000003C7000-memory.dmp	upx
behavioral2/files/0x000f0000000239dc-20.dat	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	CTS.exe
File created	C:\Windows\CTS.exe	524515bcbb189d94ae0a3b48fa8f1622_JaffaCakes118.exe

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	524515bcbb189d94ae0a3b48fa8f1622_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	A0fWjnBs8u3CSPW.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CTS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	A0fWjnBs8u3CSPW.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3468	524515bcbb189d94ae0a3b48fa8f1622_JaffaCakes118.exe
Token: SeDebugPrivilege	3552	CTS.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3732	A0fWjnBs8u3CSPW.exe
3732	A0fWjnBs8u3CSPW.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3468 wrote to memory of 3680	3468	524515bcbb189d94ae0a3b48fa8f1622_JaffaCakes118.exe	84
PID 3468 wrote to memory of 3680	3468	524515bcbb189d94ae0a3b48fa8f1622_JaffaCakes118.exe	84
PID 3468 wrote to memory of 3680	3468	524515bcbb189d94ae0a3b48fa8f1622_JaffaCakes118.exe	84
PID 3468 wrote to memory of 3552	3468	524515bcbb189d94ae0a3b48fa8f1622_JaffaCakes118.exe	85
PID 3468 wrote to memory of 3552	3468	524515bcbb189d94ae0a3b48fa8f1622_JaffaCakes118.exe	85
PID 3468 wrote to memory of 3552	3468	524515bcbb189d94ae0a3b48fa8f1622_JaffaCakes118.exe	85
PID 3680 wrote to memory of 3732	3680	A0fWjnBs8u3CSPW.exe	86
PID 3680 wrote to memory of 3732	3680	A0fWjnBs8u3CSPW.exe	86
PID 3680 wrote to memory of 3732	3680	A0fWjnBs8u3CSPW.exe	86

C:\Users\Admin\AppData\Local\Temp\524515bcbb189d94ae0a3b48fa8f1622_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\524515bcbb189d94ae0a3b48fa8f1622_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:3468
- C:\Users\Admin\AppData\Local\Temp\A0fWjnBs8u3CSPW.exe
  C:\Users\Admin\AppData\Local\Temp\A0fWjnBs8u3CSPW.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3680
- - C:\Users\Admin\AppData\Local\Temp\jds240630125.tmp\A0fWjnBs8u3CSPW.exe
    "C:\Users\Admin\AppData\Local\Temp\jds240630125.tmp\A0fWjnBs8u3CSPW.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:3732
- 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:3552

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
348KB

MD5
cdb86424d88141515d7261cd5910c3ce

SHA1
fb11048223da0bace9a5c07d09ab0cdf11af147e

SHA256
a5ca582244e2491dd61de23ab08be7f5e926650be622f9fd52da6b499c380718

SHA512
1a56fcd5f20c3915508f007e5f7c01793a91278da26ac07da63908ad9afef2c72080f465496677e1eeb65dc39a02d62de891320b165066c4205536afe35bc926

Download Submit
C:\Users\Admin\AppData\Local\Temp\A0fWjnBs8u3CSPW.exe

Filesize
1.8MB

MD5
544e07d620d3108b9b6aa3384d02dea5

SHA1
9897596f3c4ec39e38ef7f1081783db7693ae0b2

SHA256
a8fb1a1473831ac6feb092afd2cbdded2d6a881d3576158fabd89090050b52f8

SHA512
3663b9c056447c4491635b5bdcbc6e1a2b67a432b41bab6f479da5c787c48f1067cecafdfb6d9763f9b17b553aa953ae87068ba7f0c1c93facf34db7ac53a64c

Download Submit
C:\Users\Admin\AppData\Local\Temp\jds240630125.tmp\A0fWjnBs8u3CSPW.exe

Filesize
1.6MB

MD5
109cbe148f827137c3ba62261f01b29b

SHA1
2cc02b09da46d9e5d0ac1b306a0bbcc12bfe4c12

SHA256
394ad6212e4866cc8e6d1834df8f70538dddf09d23dfa65ea204b22c012b541a

SHA512
a2dfa03dd290540bcfeda6cfd7d6ed891700742b4323d8c8dbfc4c822386ef1ddfff5cf71b2e5d7be9ec72fb6fc2145ff6ffc440823187d6956d5aa2794c5799

Download Submit
C:\Users\Admin\AppData\Local\Temp\jusched.log

Filesize
164KB

MD5
89dc2cdb8de79fd0e49fd8bf1ccf0594

SHA1
696f0fac3995e1fa472a0bb3ba02a43735648ebe

SHA256
2507e0a7246d96d75e2238478f8f02a75f6105ae9da5f55aea68e98dae7b6a11

SHA512
ede0b90e9a28eb8b50b3a0119bf3510d304acd39ceb8e8cf853fc395dd6da2b3594722b90a9491a4099c90209586de6daba7f04106c8e533f416ea8506d06c96

Download Submit
C:\Users\Admin\AppData\Local\Temp\jusched.log

Filesize
164KB

MD5
c7c77ecf32457eb352fd795196dfbc41

SHA1
65a230c061d8bf1b334b56e00ddfd2afc6b175ea

SHA256
53aa1eef56fa18fa94f927cbcbf0fefd25b649f5e1f5ae32e26d09477cf93560

SHA512
9c60702419aaab8b037684146f1c6f91e516ff0b926e15f4da55570255498f5548e63b59249cf2a1289400f6102262830dfcc4dea24d31d3f1b09de6575c4274

Download Submit
C:\Windows\CTS.exe

Filesize
28KB

MD5
e6150447c894ade7b2b9ee88d5933922

SHA1
dc62f7f9ff1a492adadbc8b6321c0b7b9cd973d1

SHA256
b612d46644d0e4a3829c4d6715f71d979103aa487624805363b36f5b4f92b118

SHA512
d6db2b459723005662a646357bd60ab6e5cf77ab4f83868c91e725e45c32b44900c32724883df6aa4a0e85cbf7441bea159334f3080cfe8e7acec540aa996ff0

Download Submit
memory/3468-0-0x00000000003B0000-0x00000000003C7000-memory.dmp

Filesize
92KB

Download
memory/3468-17-0x00000000003B0000-0x00000000003C7000-memory.dmp

Filesize
92KB

Download
memory/3552-12-0x0000000000C60000-0x0000000000C77000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads