colibri | ed28743bfc1a8f95a95e5c6fee5597d6961e497413d8e9b3544588ae7484f3f4

General

Target

ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe
Size

492KB
MD5

81d3017db518b0b252fbc291a5c7d992
SHA1

e05a2679511cc7d307c79b3170f9e8baaf87babc
SHA256

ed28743bfc1a8f95a95e5c6fee5597d6961e497413d8e9b3544588ae7484f3f4
SHA512

e9380fad8c17727c692c4c661e473be836010d4d456af7a8bb2999153a3c26735e080fa6274a62d2634b0510ecfe4eb4e656234eca2f4a9a03575d959a9cc6bb
SSDEEP

12288:gOfPr+8CHzhgAOt0AcfAWV5CRbdjNA98wl:hfz+NThghUAWVMRRjNJ

Score

10^/10

colibri build1 discovery loader spyware stealer upx

Malware Config

Extracted

Family

colibri

Version

1.2.0

Botnet

Build1

C2

http://zpltcmgodhvvedxtfcygvbgjkvgvcguygytfigj.cc/gate.php

http://yugyuvyugguitgyuigtfyutdtoghghbbgyv.cx/gate.php

Signatures

Colibri Loader
A loader sold as MaaS first seen in August 2021.
loader colibri
Downloads MZ/PE file
Executes dropped EXE 3 IoCs

Processes:

tmp6B7.tmp.exetmp6B7.tmp.exeloader.exe

pid process

1988 tmp6B7.tmp.exe
3844 tmp6B7.tmp.exe
4808 loader.exe

pid	process
1988	tmp6B7.tmp.exe
3844	tmp6B7.tmp.exe
4808	loader.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\loader.exe	upx
C:\Users\Admin\AppData\Roaming\loader.exe	upx
behavioral2/memory/4808-155-0x0000000000780000-0x0000000001A26000-memory.dmp	upx
behavioral2/memory/4808-157-0x0000000000780000-0x0000000001A26000-memory.dmp	upx
behavioral2/memory/4808-162-0x0000000000780000-0x0000000001A26000-memory.dmp	upx

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.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
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Suspicious use of SetThreadContext 1 IoCs

Processes:

tmp6B7.tmp.exe

description pid process target process

PID 1988 set thread context of 3844 1988 tmp6B7.tmp.exe tmp6B7.tmp.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exepowershell.exe

pid process

2208 ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe
4524 powershell.exe
4524 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exepowershell.exe

description pid process

Token: SeDebugPrivilege 2208 ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe
Token: SeDebugPrivilege 4524 powershell.exe

description	pid	process	target process
PID 1988 set thread context of 3844	1988	tmp6B7.tmp.exe	tmp6B7.tmp.exe

pid	process
2208	ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe
4524	powershell.exe
4524	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2208	ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe
Token: SeDebugPrivilege	4524	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exetmp6B7.tmp.exeloader.exe

description	pid	process	target process
PID 2208 wrote to memory of 1988	2208	ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe	tmp6B7.tmp.exe
PID 2208 wrote to memory of 1988	2208	ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe	tmp6B7.tmp.exe
PID 2208 wrote to memory of 1988	2208	ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe	tmp6B7.tmp.exe
PID 1988 wrote to memory of 3844	1988	tmp6B7.tmp.exe	tmp6B7.tmp.exe
PID 1988 wrote to memory of 3844	1988	tmp6B7.tmp.exe	tmp6B7.tmp.exe
PID 1988 wrote to memory of 3844	1988	tmp6B7.tmp.exe	tmp6B7.tmp.exe
PID 1988 wrote to memory of 3844	1988	tmp6B7.tmp.exe	tmp6B7.tmp.exe
PID 1988 wrote to memory of 3844	1988	tmp6B7.tmp.exe	tmp6B7.tmp.exe
PID 1988 wrote to memory of 3844	1988	tmp6B7.tmp.exe	tmp6B7.tmp.exe
PID 1988 wrote to memory of 3844	1988	tmp6B7.tmp.exe	tmp6B7.tmp.exe
PID 2208 wrote to memory of 4808	2208	ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe	loader.exe
PID 2208 wrote to memory of 4808	2208	ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe	loader.exe
PID 4808 wrote to memory of 4524	4808	loader.exe	powershell.exe
PID 4808 wrote to memory of 4524	4808	loader.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe
"C:\Users\Admin\AppData\Local\Temp\ED28743BFC1A8F95A95E5C6FEE5597D6961E497413D8E.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2208

C:\Users\Admin\AppData\Local\Temp\tmp6B7.tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp6B7.tmp.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1988

C:\Users\Admin\AppData\Local\Temp\tmp6B7.tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp6B7.tmp.exe"
3⤵
- Executes dropped EXE
PID:3844

C:\Users\Admin\AppData\Roaming\loader.exe
"C:\Users\Admin\AppData\Roaming\loader.exe"
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4808

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell "" "Get-WmiObject Win32_PortConnector"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4524

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp6B7.tmp.exe
Filesize
74KB

MD5
cdd3d44d9e64a113618961f0a4e691b9

SHA1
a762037bc50ddb7507d5ef1a20ce813ad990bb54

SHA256
dbeb4b5ef3a49b4df0bc816a52f875e5aa6ad674aa8e2b458e9736da0b366ec0

SHA512
55146e6464bf74266520341fae0b097ddfea1d6ed7fadf7e0dcf0eba7ac1c29384ad76f245994ea69f68dc85cdcdcb9fc4a2a1eede5db95001dbcd870505a3d8

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6B7.tmp.exe
Filesize
74KB

MD5
cdd3d44d9e64a113618961f0a4e691b9

SHA1
a762037bc50ddb7507d5ef1a20ce813ad990bb54

SHA256
dbeb4b5ef3a49b4df0bc816a52f875e5aa6ad674aa8e2b458e9736da0b366ec0

SHA512
55146e6464bf74266520341fae0b097ddfea1d6ed7fadf7e0dcf0eba7ac1c29384ad76f245994ea69f68dc85cdcdcb9fc4a2a1eede5db95001dbcd870505a3d8

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6B7.tmp.exe
Filesize
74KB

MD5
cdd3d44d9e64a113618961f0a4e691b9

SHA1
a762037bc50ddb7507d5ef1a20ce813ad990bb54

SHA256
dbeb4b5ef3a49b4df0bc816a52f875e5aa6ad674aa8e2b458e9736da0b366ec0

SHA512
55146e6464bf74266520341fae0b097ddfea1d6ed7fadf7e0dcf0eba7ac1c29384ad76f245994ea69f68dc85cdcdcb9fc4a2a1eede5db95001dbcd870505a3d8

Download Submit
C:\Users\Admin\AppData\Roaming\loader.exe
Filesize
5.1MB

MD5
f505b027e7d5da22ee6f4b9d3fb35978

SHA1
57931a188c5bcdfaeab508598574a3e2113b6495

SHA256
8860992a5b56bbeb6e67d208b1e3ba37b7795bcaee9b21f12bbc8c09862585e5

SHA512
7cd0b37bca9a19e9f5834c8dfe8d11eedbde370f1ea430632e6c7006deb7ab9352fb4616bc7293a156cfc5bd0b49c3d9e643ab3780b897bcf3fe8a09468c5c45

Download Submit
C:\Users\Admin\AppData\Roaming\loader.exe
Filesize
5.1MB

MD5
f505b027e7d5da22ee6f4b9d3fb35978

SHA1
57931a188c5bcdfaeab508598574a3e2113b6495

SHA256
8860992a5b56bbeb6e67d208b1e3ba37b7795bcaee9b21f12bbc8c09862585e5

SHA512
7cd0b37bca9a19e9f5834c8dfe8d11eedbde370f1ea430632e6c7006deb7ab9352fb4616bc7293a156cfc5bd0b49c3d9e643ab3780b897bcf3fe8a09468c5c45

Download Submit
memory/1988-137-0x0000000000B80000-0x0000000000B83000-memory.dmp

Filesize
12KB

Download
memory/1988-134-0x0000000000000000-mapping.dmp

Download
memory/2208-143-0x000000001D610000-0x000000001D622000-memory.dmp

Filesize
72KB

Download
memory/2208-151-0x000000001E5E0000-0x000000001E630000-memory.dmp

Filesize
320KB

Download
memory/2208-141-0x000000001DFA0000-0x000000001E0AA000-memory.dmp

Filesize
1.0MB

Download
memory/2208-132-0x0000000000F50000-0x0000000000FD2000-memory.dmp

Filesize
520KB

Download
memory/2208-156-0x00007FFBA9210000-0x00007FFBA9CD1000-memory.dmp

Filesize
10.8MB

Download
memory/2208-144-0x000000001D670000-0x000000001D6AC000-memory.dmp

Filesize
240KB

Download
memory/2208-145-0x00007FFBA9210000-0x00007FFBA9CD1000-memory.dmp

Filesize
10.8MB

Download
memory/2208-133-0x00007FFBA9210000-0x00007FFBA9CD1000-memory.dmp

Filesize
10.8MB

Download
memory/2208-147-0x000000001E230000-0x000000001E2A6000-memory.dmp

Filesize
472KB

Download
memory/2208-148-0x000000001D630000-0x000000001D64E000-memory.dmp

Filesize
120KB

Download
memory/2208-149-0x000000001E7B0000-0x000000001E972000-memory.dmp

Filesize
1.8MB

Download
memory/2208-150-0x000000001EEB0000-0x000000001F3D8000-memory.dmp

Filesize
5.2MB

Download
memory/3844-139-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3844-146-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3844-142-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3844-138-0x0000000000000000-mapping.dmp

Download
memory/4524-158-0x0000000000000000-mapping.dmp

Download
memory/4524-159-0x0000023B57490000-0x0000023B574B2000-memory.dmp

Filesize
136KB

Download
memory/4524-160-0x00007FFBA9240000-0x00007FFBA9D01000-memory.dmp

Filesize
10.8MB

Download
memory/4524-161-0x00007FFBA9240000-0x00007FFBA9D01000-memory.dmp

Filesize
10.8MB

Download
memory/4808-152-0x0000000000000000-mapping.dmp

Download
memory/4808-155-0x0000000000780000-0x0000000001A26000-memory.dmp

Filesize
18.6MB

Download
memory/4808-157-0x0000000000780000-0x0000000001A26000-memory.dmp

Filesize
18.6MB

Download
memory/4808-162-0x0000000000780000-0x0000000001A26000-memory.dmp

Filesize
18.6MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads