3d6bca3407b021f44118d16e93201d657451769f87ac38cc2c58e32693d72c30

General

Target

2024-04-28_e7c16020ea6e695836f84d7bb6228635_bkransomware.exe
Size

96KB
MD5

e7c16020ea6e695836f84d7bb6228635
SHA1

05f4a10b0490e52acb2850f4ee29f68b94649edc
SHA256

3d6bca3407b021f44118d16e93201d657451769f87ac38cc2c58e32693d72c30
SHA512

251c1169a25b4d6feb221ea5c7a8af513f87e0349cf2e9e4431d7462fc96804771a071118efebd1eb65c39e73aeac3993d5ee4ce63b5aafbbea79914f79cd67b
SSDEEP

1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTQuID6RJYVXpT:ZRpAyazIliazTQuI+ReVXd

Score

7^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

qeo4sav5QgioLzo.exeCTS.exe

pid process

4552 qeo4sav5QgioLzo.exe
3952 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
4552	qeo4sav5QgioLzo.exe
3952	CTS.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

CTS.exe2024-04-28_e7c16020ea6e695836f84d7bb6228635_bkransomware.exe

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"	2024-04-28_e7c16020ea6e695836f84d7bb6228635_bkransomware.exe

Drops file in Windows directory 2 IoCs

Processes:

2024-04-28_e7c16020ea6e695836f84d7bb6228635_bkransomware.exeCTS.exe

description ioc process

File created C:\Windows\CTS.exe 2024-04-28_e7c16020ea6e695836f84d7bb6228635_bkransomware.exe
File created C:\Windows\CTS.exe CTS.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2024-04-28_e7c16020ea6e695836f84d7bb6228635_bkransomware.exeCTS.exe

description pid process

Token: SeDebugPrivilege 1372 2024-04-28_e7c16020ea6e695836f84d7bb6228635_bkransomware.exe
Token: SeDebugPrivilege 3952 CTS.exe

description	ioc	process
File created	C:\Windows\CTS.exe	2024-04-28_e7c16020ea6e695836f84d7bb6228635_bkransomware.exe
File created	C:\Windows\CTS.exe	CTS.exe

description	pid	process
Token: SeDebugPrivilege	1372	2024-04-28_e7c16020ea6e695836f84d7bb6228635_bkransomware.exe
Token: SeDebugPrivilege	3952	CTS.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

2024-04-28_e7c16020ea6e695836f84d7bb6228635_bkransomware.exe

description	pid	process	target process
PID 1372 wrote to memory of 4552	1372	2024-04-28_e7c16020ea6e695836f84d7bb6228635_bkransomware.exe	qeo4sav5QgioLzo.exe
PID 1372 wrote to memory of 4552	1372	2024-04-28_e7c16020ea6e695836f84d7bb6228635_bkransomware.exe	qeo4sav5QgioLzo.exe
PID 1372 wrote to memory of 3952	1372	2024-04-28_e7c16020ea6e695836f84d7bb6228635_bkransomware.exe	CTS.exe
PID 1372 wrote to memory of 3952	1372	2024-04-28_e7c16020ea6e695836f84d7bb6228635_bkransomware.exe	CTS.exe
PID 1372 wrote to memory of 3952	1372	2024-04-28_e7c16020ea6e695836f84d7bb6228635_bkransomware.exe	CTS.exe

C:\Users\Admin\AppData\Local\Temp\2024-04-28_e7c16020ea6e695836f84d7bb6228635_bkransomware.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-28_e7c16020ea6e695836f84d7bb6228635_bkransomware.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1372

C:\Users\Admin\AppData\Local\Temp\qeo4sav5QgioLzo.exe
C:\Users\Admin\AppData\Local\Temp\qeo4sav5QgioLzo.exe
2⤵
- Executes dropped EXE
PID:4552

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:3952

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=3468 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:8
1⤵
PID:2172

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

Replay Monitor

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Downloads

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

MD5
69307c790b4b6fc1485a611dbbd54cca

SHA1
9b33b39c265601a748d6d19f6954f4c45336b295

SHA256
9bb8e28eeefc503c9c4acd99eba12400cf8650a794894f9208b894b883080d1c

SHA512
8453617e38139245e26479bdb40d3b74a899bb392cc290f558cf36aa24b4bfe14049b30292b875bc5b0aaac946ea90cac8d2ea29fd142b540e91d0e106a3f6fb

Download Submit
C:\Users\Admin\AppData\Local\Temp\qeo4sav5QgioLzo.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/4552-8-0x0000000000400000-0x000000000040D000-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