b5681e80dc9cc0f35ed7a49f7bad73506af680ec15212cbdfae92c6ef39adafc

Analysis

max time kernel
140s
max time network
119s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
18/04/2024, 05:00

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General

Target

f750693376288bd378c43b3b3f4ba87e_JaffaCakes118.exe
Size

75KB
MD5

f750693376288bd378c43b3b3f4ba87e
SHA1

8c78230c6a380a8009c1972b3c00af9072454c69
SHA256

b5681e80dc9cc0f35ed7a49f7bad73506af680ec15212cbdfae92c6ef39adafc
SHA512

49db8232300e275aa4fb28495a89cdc791c5ca7f140b201bb5e061b9ca1d34dcc9a92482de02937a19d5a35570b9d83a03352a9224fa34c712e2f1951bfb6d9d
SSDEEP

1536:SKcR4mjD9r823FHKcR4mjD9r823FoGn2Ynqzc:SKcWmjRrz3ZKcWmjRrz3SGLqzc

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2428	CTS.exe

Reads user/profile data of web browsers 2 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

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2028-1-0x0000000000E30000-0x0000000000E47000-memory.dmp	upx
behavioral1/memory/2028-9-0x0000000000E30000-0x0000000000E47000-memory.dmp	upx
behavioral1/memory/2428-12-0x0000000000B60000-0x0000000000B77000-memory.dmp	upx
behavioral1/files/0x000c000000013113-11.dat	upx
behavioral1/memory/2028-5-0x00000000001B0000-0x00000000001C7000-memory.dmp	upx
behavioral1/files/0x000c0000000122bb-14.dat	upx

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"	f750693376288bd378c43b3b3f4ba87e_JaffaCakes118.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	CTS.exe
File created	C:\Windows\CTS.exe	f750693376288bd378c43b3b3f4ba87e_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2028	f750693376288bd378c43b3b3f4ba87e_JaffaCakes118.exe
Token: SeDebugPrivilege	2428	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2028 wrote to memory of 2428	2028	f750693376288bd378c43b3b3f4ba87e_JaffaCakes118.exe	28
PID 2028 wrote to memory of 2428	2028	f750693376288bd378c43b3b3f4ba87e_JaffaCakes118.exe	28
PID 2028 wrote to memory of 2428	2028	f750693376288bd378c43b3b3f4ba87e_JaffaCakes118.exe	28
PID 2028 wrote to memory of 2428	2028	f750693376288bd378c43b3b3f4ba87e_JaffaCakes118.exe	28

C:\Users\Admin\AppData\Local\Temp\f750693376288bd378c43b3b3f4ba87e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f750693376288bd378c43b3b3f4ba87e_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2028
- 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:2428

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tRrELmLS6tl53pG.exe

Filesize
75KB

MD5
0fd2ee1306cc145fd5403f700a2fe820

SHA1
3654e3d4de5fe9cf1434f10e0dd69bec28ba294f

SHA256
71dd424a1e951c45956d633b076d003419d0be317937c2e98f4f33bd23e1d6fc

SHA512
d87aa6af646eaa6054f939629e60ef09a36f9d23daead9ac291d1ac3a4c80d064fc318fcf9ed34d89e66484d37ee4503d738e64aeda4840bfb4c74e4ecb2d81e

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/2028-1-0x0000000000E30000-0x0000000000E47000-memory.dmp

Filesize
92KB

Download
memory/2028-9-0x0000000000E30000-0x0000000000E47000-memory.dmp

Filesize
92KB

Download
memory/2028-5-0x00000000001B0000-0x00000000001C7000-memory.dmp

Filesize
92KB

Download
memory/2428-12-0x0000000000B60000-0x0000000000B77000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads