d3f5c28531c0db967be69fa437dcd7437d81fdc9c1bbb6860b7ab9dcb2d1200c

General

Target

2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe
Size

96KB
MD5

32114b316b47eb935499abfe766b3739
SHA1

39e6cd2a97475cedf70ab4ef29a089af513b4779
SHA256

d3f5c28531c0db967be69fa437dcd7437d81fdc9c1bbb6860b7ab9dcb2d1200c
SHA512

49df773f572f31f66e6fde7ff2aa719e59c44cb0bb3cad07c4e91d3396d35ee810b271a11529de53797ac1804ab47f4491e513d9a49566b8f2fcda1a40db9177
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTI+ypaRFu144OZkcMoeS4NZd1fu:ZRpAyazIliazT9MajuulZkcMXTd1m

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

hxv4r37mjSDGbNr.exeCTS.exe

pid process

4296 hxv4r37mjSDGbNr.exe
4088 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

pid	process
4296	hxv4r37mjSDGbNr.exe
4088	CTS.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exeCTS.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	2024-05-24_32114b316b47eb935499abfe766b3739_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:

2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exeCTS.exe

description ioc process

File created C:\Windows\CTS.exe 2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe
File created C:\Windows\CTS.exe CTS.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exeCTS.exe

description pid process

Token: SeDebugPrivilege 2428 2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe
Token: SeDebugPrivilege 4088 CTS.exe

description	ioc	process
File created	C:\Windows\CTS.exe	2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

description	pid	process
Token: SeDebugPrivilege	2428	2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe
Token: SeDebugPrivilege	4088	CTS.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe

description	pid	process	target process
PID 2428 wrote to memory of 4296	2428	2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe	hxv4r37mjSDGbNr.exe
PID 2428 wrote to memory of 4296	2428	2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe	hxv4r37mjSDGbNr.exe
PID 2428 wrote to memory of 4088	2428	2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe	CTS.exe
PID 2428 wrote to memory of 4088	2428	2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe	CTS.exe
PID 2428 wrote to memory of 4088	2428	2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe	CTS.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-24_32114b316b47eb935499abfe766b3739_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2428

C:\Users\Admin\AppData\Local\Temp\hxv4r37mjSDGbNr.exe
C:\Users\Admin\AppData\Local\Temp\hxv4r37mjSDGbNr.exe
2⤵
- Executes dropped EXE
PID:4296

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:4088

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3944 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:8
1⤵
PID:452

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml
Filesize
789KB

MD5
44600fdadd6d14d185a067dcf3ade7bb

SHA1
05747c67a85af78a8136571c8a9556178399d309

SHA256
923922c0e9ac6903b8530ef4f279923552973be1d41ecf05a4762a7665995ca2

SHA512
8d28b870f354641cf88e88b8ae8c29b684fde5d1ec448e75730441b5b8cd6f3b4f8b74569eba89e7838aaf0fcfe1e7867aacddf5b106f392a6f305441ef1d5f7

Download Submit
C:\Users\Admin\AppData\Local\Temp\hxv4r37mjSDGbNr.exe
Filesize
25KB

MD5
abbd49c180a2f8703f6306d6fa731fdc

SHA1
d63f4bfe7f74936b2fbace803e3da6103fbf6586

SHA256
5f411c0bd9ed9a42b0f07ed568c7d0cf358a83063b225a1f8f7da3296dde90f1

SHA512
290dd984acc451b778f3db8c510bae7aec1d9547c3ad0a1829df731c136e4ecc9a37dc6a786cf8f1ecc4d14339aed1288af25055f450f6f953138c8d4d5c36e9

Download Submit
C:\Windows\CTS.exe
Filesize
71KB

MD5
f9d4ab0a726adc9b5e4b7d7b724912f1

SHA1
3d42ca2098475924f70ee4a831c4f003b4682328

SHA256
b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc

SHA512
22a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432

Download Submit
memory/4296-8-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads