a116fa311590ee45ddad7d2022a58017cdc3e33ecf1450c6398e316c0d0e91fd

Analysis

max time kernel
92s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
09/07/2024, 18:28

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General

Target

2024-07-09_cfea47ad4f7c40302b1394a365e0c1a4_bkransomware.exe
Size

71KB
MD5

cfea47ad4f7c40302b1394a365e0c1a4
SHA1

c5f4e93f04c083f339b74be635b0f454d4723c65
SHA256

a116fa311590ee45ddad7d2022a58017cdc3e33ecf1450c6398e316c0d0e91fd
SHA512

7eaa8184559d4728e9c5b201e6ae3fe3c8a86824d9737861703cd3def2790216c97bb9200fe8840371b4d9812180c94bce598b6e2bd7c2538ca84c809ddb59b4
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazT5:ZhpAyazIlyazT5

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2512	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

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"	2024-07-09_cfea47ad4f7c40302b1394a365e0c1a4_bkransomware.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	2024-07-09_cfea47ad4f7c40302b1394a365e0c1a4_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2152	2024-07-09_cfea47ad4f7c40302b1394a365e0c1a4_bkransomware.exe
Token: SeDebugPrivilege	2512	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 2512	2152	2024-07-09_cfea47ad4f7c40302b1394a365e0c1a4_bkransomware.exe	82
PID 2152 wrote to memory of 2512	2152	2024-07-09_cfea47ad4f7c40302b1394a365e0c1a4_bkransomware.exe	82
PID 2152 wrote to memory of 2512	2152	2024-07-09_cfea47ad4f7c40302b1394a365e0c1a4_bkransomware.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-07-09_cfea47ad4f7c40302b1394a365e0c1a4_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-09_cfea47ad4f7c40302b1394a365e0c1a4_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2152
- 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:2512

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

C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
394KB

MD5
1ed443cb105d29c5d60bd80c6e1dd3df

SHA1
7807537bb103e8da39e3242a42d251d0c80a180d

SHA256
09249dc9fab058857d46cece8ee7f67b835b0f75ea0e1d2695184c3f275cf811

SHA512
1298f26ff18e5a58b7725664cea58dd401b20818ca10a0b3919b5c4cf977324e98d0f31afde0ac92e9acfdb239de00d2c243745b57bfadfc40b1d8cb3c5482ad

Download Submit
C:\Users\Admin\AppData\Local\Temp\SXIe9NWIyPlyYSk.exe

Filesize
71KB

MD5
5645ccccf90c135766176281ade488e9

SHA1
5a7594273c1bec7a645946f1c5de6988fce82c83

SHA256
b3102df110f49d484cfd29b704c4ed5d50c12f085fc0a4cbfa7186a56c9f05b8

SHA512
3fd2f5a5d4d4351fd38fe775ac04618f0d9a8205508f7cfb8774df265ff65d8213f0f9e986421634502f114e203a670400386f6e1d79a5020cd4a27fa0c399bb

Download Submit
C:\Windows\CTS.exe

Filesize
71KB

MD5
66df4ffab62e674af2e75b163563fc0b

SHA1
dec8a197312e41eeb3cfef01cb2a443f0205cd6e

SHA256
075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

SHA512
1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads