866b87519958bb1248fad614affff4d15cc05cd8ef2a7b845157139c1719ce79

General

Target

0838acc08b5f1e16483757c31935b586_JaffaCakes118.exe
Size

29KB
MD5

0838acc08b5f1e16483757c31935b586
SHA1

8066ad53404a88dbf5249e1419bef1248f37937a
SHA256

866b87519958bb1248fad614affff4d15cc05cd8ef2a7b845157139c1719ce79
SHA512

36dd441d215a2e9b2c6cf7afea8d109f8e125ac0311c122bde7cbc4e4e75153f738207c92ba2ef2c3209a4ff177d81bd200196415285ad419f7f4714440281e8
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFKA:SKcR4mjD9r823FKA

Score

7^/10

discovery persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2280	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"	0838acc08b5f1e16483757c31935b586_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2204-0-0x0000000000120000-0x0000000000137000-memory.dmp	upx
behavioral1/memory/2204-9-0x0000000000120000-0x0000000000137000-memory.dmp	upx
behavioral1/memory/2280-11-0x00000000012C0000-0x00000000012D7000-memory.dmp	upx
behavioral1/files/0x0008000000016890-12.dat	upx
behavioral1/files/0x0007000000012117-14.dat	upx
behavioral1/memory/2280-16-0x00000000012C0000-0x00000000012D7000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	0838acc08b5f1e16483757c31935b586_JaffaCakes118.exe
File created	C:\Windows\CTS.exe	CTS.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	0838acc08b5f1e16483757c31935b586_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2204	0838acc08b5f1e16483757c31935b586_JaffaCakes118.exe
Token: SeDebugPrivilege	2280	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 2280	2204	0838acc08b5f1e16483757c31935b586_JaffaCakes118.exe	28
PID 2204 wrote to memory of 2280	2204	0838acc08b5f1e16483757c31935b586_JaffaCakes118.exe	28
PID 2204 wrote to memory of 2280	2204	0838acc08b5f1e16483757c31935b586_JaffaCakes118.exe	28
PID 2204 wrote to memory of 2280	2204	0838acc08b5f1e16483757c31935b586_JaffaCakes118.exe	28

C:\Users\Admin\AppData\Local\Temp\0838acc08b5f1e16483757c31935b586_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0838acc08b5f1e16483757c31935b586_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:2204
- C:\Windows\CTS.exe
  "C:\Windows\CTS.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  PID:2280

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\Temp\4eRx1BzF9KADZCB.exe

Filesize
29KB

MD5
5db7287fd87d977c864345f703b5d1c7

SHA1
660b17336cccf8c26df50b864e326448709dd2b8

SHA256
db340ce951b094d8118a5f61bccd9b7440fc263a38ea04ea7623ea1b0e7c2688

SHA512
8038cee621011141595d2212b123123635432103efb0b7824e38642cd5df8eab122b5a37b447417c15f514537b89425d57b3ed689104457fbad889c8a4ee9da9

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/2204-0-0x0000000000120000-0x0000000000137000-memory.dmp

Filesize
92KB

Download
memory/2204-9-0x0000000000120000-0x0000000000137000-memory.dmp

Filesize
92KB

Download
memory/2280-11-0x00000000012C0000-0x00000000012D7000-memory.dmp

Filesize
92KB

Download
memory/2280-16-0x00000000012C0000-0x00000000012D7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads