a0602b7d87620ae062a66752ea95986203ef8055abb441e96ba45f4f8bfe9475

General

Target

9f0d14e4a3f9d1c37bbb5ce7e77bea44_JaffaCakes118.exe
Size

93KB
MD5

9f0d14e4a3f9d1c37bbb5ce7e77bea44
SHA1

03dd6b3a5025c0dba9086705b81c411027204f83
SHA256

a0602b7d87620ae062a66752ea95986203ef8055abb441e96ba45f4f8bfe9475
SHA512

ee3e427ca6bb394b29ce1ab2ab677f4058f9c392c53db6e90b00c410b9380373a7d3ac875f044e3da97399f2bd2b2e76dda0b385aa4964be5b09b8809aee0381
SSDEEP

1536:SKcR4mjD9r823F1MQ1mkRrbqo5TNBjKixf7edsTMOOPZyyQxxLYxORW86c0:SKcWmjRrz3QQAkBbLTx5KVPgy+uP830

Score

7^/10

discovery persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

4CLEwsCsraVrVNh.exeCTS.exe

pid	Process
1784	4CLEwsCsraVrVNh.exe
2340	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

Processes:

9f0d14e4a3f9d1c37bbb5ce7e77bea44_JaffaCakes118.exeCTS.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	9f0d14e4a3f9d1c37bbb5ce7e77bea44_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

Processes:

resource	yara_rule
behavioral2/memory/4264-0-0x0000000000790000-0x00000000007A7000-memory.dmp	upx
behavioral2/files/0x000c000000023b59-6.dat	upx
behavioral2/memory/2340-8-0x0000000000A10000-0x0000000000A27000-memory.dmp	upx
behavioral2/memory/4264-10-0x0000000000790000-0x00000000007A7000-memory.dmp	upx
behavioral2/files/0x001400000002398f-14.dat	upx
behavioral2/memory/2340-33-0x0000000000A10000-0x0000000000A27000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

Processes:

9f0d14e4a3f9d1c37bbb5ce7e77bea44_JaffaCakes118.exeCTS.exe

description	ioc	Process
File created	C:\Windows\CTS.exe	9f0d14e4a3f9d1c37bbb5ce7e77bea44_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

Processes:

CTS.exe4CLEwsCsraVrVNh.exe9f0d14e4a3f9d1c37bbb5ce7e77bea44_JaffaCakes118.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CTS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4CLEwsCsraVrVNh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9f0d14e4a3f9d1c37bbb5ce7e77bea44_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

9f0d14e4a3f9d1c37bbb5ce7e77bea44_JaffaCakes118.exeCTS.exe

description	pid	Process
Token: SeDebugPrivilege	4264	9f0d14e4a3f9d1c37bbb5ce7e77bea44_JaffaCakes118.exe
Token: SeDebugPrivilege	2340	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

9f0d14e4a3f9d1c37bbb5ce7e77bea44_JaffaCakes118.exe

description	pid	Process	procid_target
PID 4264 wrote to memory of 1784	4264	9f0d14e4a3f9d1c37bbb5ce7e77bea44_JaffaCakes118.exe	82
PID 4264 wrote to memory of 1784	4264	9f0d14e4a3f9d1c37bbb5ce7e77bea44_JaffaCakes118.exe	82
PID 4264 wrote to memory of 1784	4264	9f0d14e4a3f9d1c37bbb5ce7e77bea44_JaffaCakes118.exe	82
PID 4264 wrote to memory of 2340	4264	9f0d14e4a3f9d1c37bbb5ce7e77bea44_JaffaCakes118.exe	83
PID 4264 wrote to memory of 2340	4264	9f0d14e4a3f9d1c37bbb5ce7e77bea44_JaffaCakes118.exe	83
PID 4264 wrote to memory of 2340	4264	9f0d14e4a3f9d1c37bbb5ce7e77bea44_JaffaCakes118.exe	83

C:\Users\Admin\AppData\Local\Temp\9f0d14e4a3f9d1c37bbb5ce7e77bea44_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9f0d14e4a3f9d1c37bbb5ce7e77bea44_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:4264
- C:\Users\Admin\AppData\Local\Temp\4CLEwsCsraVrVNh.exe
  C:\Users\Admin\AppData\Local\Temp\4CLEwsCsraVrVNh.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1784
- 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:2340

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
351KB

MD5
9bc7257b8aa7244fb3688d293f745653

SHA1
70d3a1853d6bfc9dbeac2e1e235204dfeacb1d88

SHA256
b78a0624d42183f234015c35cf495c3b19e0d6132448188251ac367db2f2e89d

SHA512
934721a242063f36d0de217f5b6d0bfe69be6da2c5bd49f07cb2593fdaceab952dc6d02b69dfb3758f28fddf7fd9de7e1b0d88e53f493231c2ed56a3776b1a3e

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

Filesize
64KB

MD5
a32a382b8a5a906e03a83b4f3e5b7a9b

SHA1
11e2bdd0798761f93cce363329996af6c17ed796

SHA256
75f12ea2f30d9c0d872dade345f30f562e6d93847b6a509ba53beec6d0b2c346

SHA512
ec87dd957be21b135212454646dcabdd7ef9442cf714e2c1f6b42b81f0c3fa3b1875bde9a8b538e8a0aa2190225649c29e9ed0f25176e7659e55e422dd4efe4c

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/2340-8-0x0000000000A10000-0x0000000000A27000-memory.dmp

Filesize
92KB

Download
memory/2340-33-0x0000000000A10000-0x0000000000A27000-memory.dmp

Filesize
92KB

Download
memory/4264-0-0x0000000000790000-0x00000000007A7000-memory.dmp

Filesize
92KB

Download
memory/4264-10-0x0000000000790000-0x00000000007A7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads