5e77960c84f0e08f120154e460b65f483f765648cf625e3a09c68edd2f829857

Analysis

max time kernel
141s
max time network
114s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
04/04/2024, 10:25

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General

Target
b5e0496e2d4868502df400ed252dbfa6_JaffaCakes118.exe
Size 28KB
Sample240404-mf7h7ada37
SHA256 5e77960c84f0e08f120154e460b65f483f765648cf625e3a09c68edd2f829857
MD5 b5e0496e2d4868502df400ed252dbfa6
SHA1 cfa72c63adb220afc668ca87c34b759924132f7a
SHA512 a264122f9d9849ae788ca7e925802c58075d90c19683d0d965bcd8de6cc11bfb750c37aae8f09c8ac9b360987d6181f8b326dd23d5c3d03839cfe991cc58cf6a
SSDEEP 768:eyX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIoT:egKcR4mjD9r82C
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4064	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
behavioral2/memory/4712-0-0x0000000000A00000-0x0000000000A17000-memory.dmp	upx
behavioral2/files/0x000a0000000231bd-7.dat	upx
behavioral2/memory/4712-8-0x0000000000A00000-0x0000000000A17000-memory.dmp	upx
behavioral2/memory/4064-9-0x0000000000E70000-0x0000000000E87000-memory.dmp	upx
behavioral2/files/0x000600000002275e-12.dat	upx
behavioral2/files/0x000c000000023165-30.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"	b5e0496e2d4868502df400ed252dbfa6_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	b5e0496e2d4868502df400ed252dbfa6_JaffaCakes118.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4712	b5e0496e2d4868502df400ed252dbfa6_JaffaCakes118.exe
Token: SeDebugPrivilege	4064	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4712 wrote to memory of 4064	4712	b5e0496e2d4868502df400ed252dbfa6_JaffaCakes118.exe	86
PID 4712 wrote to memory of 4064	4712	b5e0496e2d4868502df400ed252dbfa6_JaffaCakes118.exe	86
PID 4712 wrote to memory of 4064	4712	b5e0496e2d4868502df400ed252dbfa6_JaffaCakes118.exe	86

C:\Users\Admin\AppData\Local\Temp\b5e0496e2d4868502df400ed252dbfa6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b5e0496e2d4868502df400ed252dbfa6_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4712
- 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:4064

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

Replay Monitor

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Downloads

excel.exe_Rules.xml

Path C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml
Size 351KB
SHA256 cc756609cd68dfca9745491128ec80b993b765cc05d9691fe3605d66995a8c00
MD5 6aaa78aa80cb1607c3bbc6833a7c03c2
SHA1 a769aac1defdabaf13345c58608eb0c34a264242
SHA512 816657745cce1e17271267a4738bfcc9434811d17aacd398a5f97d5a6969da4cdc62758a2dc78adb00ccb1bdb8e4ba40c690e947d18b11be4235d735fcd5814e
SSDEEP 6144:SG4VlqyEvyuHo7yEgQ7y45U8MaM5yC1j+dxFO/yVsckxxsIZ7LIn1d8bwN2siSCX:SHH1EaHTU8MaM8C1jwoNRHe1ahp
MD5 SHA1 SHA512 SSDEEP

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G8knCJIGhDtBRXV.exe

Path C:\Users\Admin\AppData\Local\Temp\G8knCJIGhDtBRXV.exe
Size 28KB
SHA256 7cdb9098314799ada45c033aa5342bbd93182153ebc58b5ae3271baca543712f
MD5 7d97c178142a3b7f18c7c332c4c2ea59
SHA1 7dd26b6b2b4b621042e9cf3675a2e4bd7c72f0e3
SHA512 802e70ceec163df25795bd709470bfaba809c525e4af1ee70941cb508c738af2ac8a074acee91201768d3f4d7766b78d2549623f509a81a348164ff1aaa0eaf3
SSDEEP 768:eyX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIoaQ:egKcR4mjD9r820
MD5 SHA1 SHA512 SSDEEP

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CTS.exe

Path C:\Windows\CTS.exe
Size 28KB
SHA256 b612d46644d0e4a3829c4d6715f71d979103aa487624805363b36f5b4f92b118
MD5 e6150447c894ade7b2b9ee88d5933922
SHA1 dc62f7f9ff1a492adadbc8b6321c0b7b9cd973d1
SHA512 d6db2b459723005662a646357bd60ab6e5cf77ab4f83868c91e725e45c32b44900c32724883df6aa4a0e85cbf7441bea159334f3080cfe8e7acec540aa996ff0
SSDEEP 768:eyX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIo:egKcR4mjD9r82
MD5 SHA1 SHA512 SSDEEP

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memory/4064-9-0x0000000000E70000-0x0000000000E87000-memory.dmp

Download

memory/4712-0-0x0000000000A00000-0x0000000000A17000-memory.dmp

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memory/4712-8-0x0000000000A00000-0x0000000000A17000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads