colibri | a3d5c655cfd386f82cae077d2db8b8c5c64eb560260eca223442f678635349f0

Analysis

max time kernel
150s
max time network
148s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
09-02-2023 04:17

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General

Target

file.exe
Size

2.7MB
MD5

a98cf7d9ef915f3c3cb16d731eb43ff9
SHA1

51110199aae9e5546a8b6e29e62a0a629ab29618
SHA256

a3d5c655cfd386f82cae077d2db8b8c5c64eb560260eca223442f678635349f0
SHA512

2ad5bf1357ac2a89c78b5f7066b759924cb78a90c5643f93b05c1c0d59b8dc0b860549cfd5fbff3ef65c0c7068c2b64cea425db74afe57071c5245773b881dc8
SSDEEP

6144:phdPbOhpdUK5rvyKMdF2Xzw4JttcBDlxdwpfxfBThM9eo1I7u0Kry2wej993RUgV:3tbO5WKeg5fBTy9eo1drf

Score

10^/10

colibri exploits loader

Malware Config

Extracted

Family

colibri

Version

1.4.0

Botnet

exploits

http://194.4.49.243/gate.php

rc4.plain

Signatures

Colibri Loader
A loader sold as MaaS first seen in August 2021.
loader colibri
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064
Suspicious use of SetThreadContext 1 IoCs

Processes:

file.exe

description pid process target process

PID 4944 set thread context of 3492 4944 file.exe vbc.exe

description	pid	process	target process
PID 4944 set thread context of 3492	4944	file.exe	vbc.exe

Drops file in Windows directory 2 IoCs

Processes:

taskmgr.exe

description	ioc	process
File created	C:\Windows\rescache\_merged\4183903823\810424605.pri	taskmgr.exe
File created	C:\Windows\rescache\_merged\1601268389\3877292338.pri	taskmgr.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

taskmgr.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A	taskmgr.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

taskmgr.exe

pid	process
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

taskmgr.exe

pid process

4780 taskmgr.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

taskmgr.exe

description	pid	process
Token: SeDebugPrivilege	4780	taskmgr.exe
Token: SeSystemProfilePrivilege	4780	taskmgr.exe
Token: SeCreateGlobalPrivilege	4780	taskmgr.exe

Suspicious use of FindShellTrayWindow 64 IoCs

Processes:

taskmgr.exe

pid	process
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe

Suspicious use of SendNotifyMessage 64 IoCs

Processes:

taskmgr.exe

pid	process
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe
4780	taskmgr.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

file.exe

description	pid	process	target process
PID 4944 wrote to memory of 3492	4944	file.exe	vbc.exe
PID 4944 wrote to memory of 3492	4944	file.exe	vbc.exe
PID 4944 wrote to memory of 3492	4944	file.exe	vbc.exe
PID 4944 wrote to memory of 3492	4944	file.exe	vbc.exe
PID 4944 wrote to memory of 3492	4944	file.exe	vbc.exe
PID 4944 wrote to memory of 3492	4944	file.exe	vbc.exe
PID 4944 wrote to memory of 3492	4944	file.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4944

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
2⤵
PID:3492

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
1⤵
- Drops file in Windows directory
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4780

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

T1064

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/3492-165-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3492-211-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3492-189-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-188-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-187-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-186-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-185-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-184-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-183-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-182-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-179-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-181-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-180-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3492-178-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-177-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-176-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-175-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-174-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-173-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-172-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-171-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-170-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-169-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-168-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-167-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/3492-166-0x0000000000404E13-mapping.dmp

Download
memory/4944-138-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-142-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-149-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-148-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-150-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-151-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-152-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-153-0x0000000000980000-0x00000000009FC000-memory.dmp

Filesize
496KB

Download
memory/4944-154-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-155-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-156-0x00000000056A0000-0x0000000005B9E000-memory.dmp

Filesize
5.0MB

Download
memory/4944-157-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-158-0x0000000005240000-0x00000000052D2000-memory.dmp

Filesize
584KB

Download
memory/4944-159-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-160-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-161-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-162-0x00000000052E0000-0x0000000005346000-memory.dmp

Filesize
408KB

Download
memory/4944-163-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-164-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-146-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-145-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-144-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-143-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-147-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-137-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-141-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-139-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-140-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-120-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-136-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-135-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-134-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-133-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-132-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-131-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-130-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-129-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-128-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-127-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-126-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-125-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-124-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-123-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-122-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download
memory/4944-121-0x0000000077D50000-0x0000000077EDE000-memory.dmp

Filesize
1.6MB

Download