f2eedacb9e787b382dc4bb1b5754e04be03cd698895398111fef2319dfb971c5

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
09/07/2024, 16:01

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General

Target

2024-07-09_33346d1cdfaed12ae45c112bc9547c17_bkransomware.exe
Size

73KB
MD5

33346d1cdfaed12ae45c112bc9547c17
SHA1

ebfaf80e67d0f42741ed385110077d74cf2fdffe
SHA256

f2eedacb9e787b382dc4bb1b5754e04be03cd698895398111fef2319dfb971c5
SHA512

d1ceeea0c599376becb57a0ba2b87e719fee7c23978dea5d875b0f24e9348bdce52e583a78c1dcee741eec88883d0d1dc74a1c544f41ad5d256309ceaaf09d2a
SSDEEP

1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTIsN:ZhpAyazIlyazTJN

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2776	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"	2024-07-09_33346d1cdfaed12ae45c112bc9547c17_bkransomware.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	2024-07-09_33346d1cdfaed12ae45c112bc9547c17_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2228	2024-07-09_33346d1cdfaed12ae45c112bc9547c17_bkransomware.exe
Token: SeDebugPrivilege	2776	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 2776	2228	2024-07-09_33346d1cdfaed12ae45c112bc9547c17_bkransomware.exe	30
PID 2228 wrote to memory of 2776	2228	2024-07-09_33346d1cdfaed12ae45c112bc9547c17_bkransomware.exe	30
PID 2228 wrote to memory of 2776	2228	2024-07-09_33346d1cdfaed12ae45c112bc9547c17_bkransomware.exe	30
PID 2228 wrote to memory of 2776	2228	2024-07-09_33346d1cdfaed12ae45c112bc9547c17_bkransomware.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-07-09_33346d1cdfaed12ae45c112bc9547c17_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-09_33346d1cdfaed12ae45c112bc9547c17_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2228
- 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:2776

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\lDcNnVjDM9CgLLn.exe

Filesize
73KB

MD5
4c44fb60e9b3b493b8ef2dbde1925a1e

SHA1
33f8b2fd5933bb4257ecd285b07346877ade8ddc

SHA256
7f191dddd5291925135357eadb6b16bece39efe9f57b431cebe3bb11b14aae2c

SHA512
de486a863ffb8dd4e065ca4c0fe04a27b320d7704fcfda0465d34289638095fe5367e45db7e5d2c7a96e88b1b2e997a7437683c1f91a9185961c62ecc01966f8

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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