7bc1890b42de0a1bbf639ef4e4f4f5a930165ea96ad3202cb97fbfd7a3740296

General

Target

2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exe
Size

595KB
MD5

0ab50fc1bcfa77f0d869163f37ba8a3e
SHA1

9b230b595da73625cae0cca885a034a313bcacbb
SHA256

7bc1890b42de0a1bbf639ef4e4f4f5a930165ea96ad3202cb97fbfd7a3740296
SHA512

c82dec3397328b48182c0370e8c84181add38cebab20569f8918d3bda09836fd80928fbc9d5cf8f1e7501971aacfa9600fdc8ce74a52049b35acdefa7699d3e9
SSDEEP

12288:hS0vhAa34ZfPuPiBpFT4bXheyv56zaEyEmVb/O2edK/3xBuI803:DvhgtGGWLE66zaEyEADSE3

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

AtkeVAJiLncEeAC.exeCTS.exe

pid process

2984 AtkeVAJiLncEeAC.exe
2564 CTS.exe
Loads dropped DLL 2 IoCs

Processes:

2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exe

pid process

2868 2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exe
2192
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

pid	process
2984	AtkeVAJiLncEeAC.exe
2564	CTS.exe

pid	process
2868	2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exe
2192

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exeCTS.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_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

Processes:

2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exeCTS.exe

description ioc process

File created C:\Windows\CTS.exe 2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exe
File created C:\Windows\CTS.exe CTS.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exeCTS.exe

description pid process

Token: SeDebugPrivilege 2868 2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exe
Token: SeDebugPrivilege 2564 CTS.exe

description	ioc	process
File created	C:\Windows\CTS.exe	2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

description	pid	process
Token: SeDebugPrivilege	2868	2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exe
Token: SeDebugPrivilege	2564	CTS.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exe

description	pid	process	target process
PID 2868 wrote to memory of 2984	2868	2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exe	AtkeVAJiLncEeAC.exe
PID 2868 wrote to memory of 2984	2868	2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exe	AtkeVAJiLncEeAC.exe
PID 2868 wrote to memory of 2984	2868	2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exe	AtkeVAJiLncEeAC.exe
PID 2868 wrote to memory of 2984	2868	2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exe	AtkeVAJiLncEeAC.exe
PID 2868 wrote to memory of 2564	2868	2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exe	CTS.exe
PID 2868 wrote to memory of 2564	2868	2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exe	CTS.exe
PID 2868 wrote to memory of 2564	2868	2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exe	CTS.exe
PID 2868 wrote to memory of 2564	2868	2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exe	CTS.exe

C:\Users\Admin\AppData\Local\Temp\2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-27_0ab50fc1bcfa77f0d869163f37ba8a3e_bkransomware.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Users\Admin\AppData\Local\Temp\AtkeVAJiLncEeAC.exe
  C:\Users\Admin\AppData\Local\Temp\AtkeVAJiLncEeAC.exe
  2⤵
  - Executes dropped EXE
  PID:2984
- 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:2564

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

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
595KB

MD5
67f6d6b8d0d2fa6b8eda397718193830

SHA1
de67d8c68015e84cc65ba807804ae2f8cc81377a

SHA256
c6bbce91206adea3f6db93450d2e204d74d3c33b0ba010d72971d070ee2921cb

SHA512
1af2dad12ae279108c44e5bebca10e36acace35fcd467d8562d8f72e5b2de29984553726548fbd4c80ba9c2fbcb4d85a57b21322cc8f426effdafc9fe48d15a5

Download Submit
C:\Windows\CTS.exe

Filesize
71KB

MD5
66df4ffab62e674af2e75b163563fc0b

SHA1
dec8a197312e41eeb3cfef01cb2a443f0205cd6e

SHA256
075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

SHA512
1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

Download Submit
\Users\Admin\AppData\Local\Temp\AtkeVAJiLncEeAC.exe

Filesize
524KB

MD5
645d5875c0ce2052d93943c62238a06e

SHA1
38c00dfaa6e0192e1157212d5baf42a8db869776

SHA256
66ef54018ef1207394bef76bcb0411f2fbbedd6230a812026bf8f1710218dbf9

SHA512
eb9654b527ddc15fae042ef6fa6b8a25f76c2fc21314abd1d629bac5066cfa11d9f3c1191150dc7784b20e5e47c4855ab97d34fadf904989a7a43ccd626949fe

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads