colibri | 72ffef4d565a07136b07f1c8c4518f159c0d3afdfae4e7736963f17eb35b0b59

General

Target

tmp.exe
Size

384KB
MD5

be6ead5fba6e45225d2c869c593c091e
SHA1

51b1f2a3ba54d0f675694831a7c9c509093c3399
SHA256

72ffef4d565a07136b07f1c8c4518f159c0d3afdfae4e7736963f17eb35b0b59
SHA512

32e0cfe77acf48e76c01ce50115a6288f2e5f1bb57532f96fced385aa5025fcd4d8b29ae83a0d06cbfb27aee3b58aa9cbedf86e68196c205e1c2e562ee213147
SSDEEP

6144:XiexrddlUFwKfSO2pKvYc9/5aLiqoKDv:XdTlmsQYcl0Jr

Score

10^/10

colibri rhadamanthys google collection loader stealer

Malware Config

Extracted

Family

colibri

Version

1.4.0

Botnet

Google

C2

http://wqfegrbjiskfmas.top/gate.php

http://interferenceatmobile.xyz/gate.php

rc4.plain

Signatures

Colibri Loader
A loader sold as MaaS first seen in August 2021.
loader colibri

Detect rhadamanthys stealer shellcode 4 IoCs

resource	yara_rule
behavioral2/memory/2208-138-0x0000000002310000-0x000000000232C000-memory.dmp	family_rhadamanthys
behavioral2/memory/2208-139-0x0000000002310000-0x000000000232C000-memory.dmp	family_rhadamanthys
behavioral2/memory/2208-141-0x0000000002310000-0x000000000232C000-memory.dmp	family_rhadamanthys
behavioral2/memory/2208-148-0x0000000002310000-0x000000000232C000-memory.dmp	family_rhadamanthys

Rhadamanthys
Rhadamanthys is an info stealer written in C++ first seen in August 2022.
stealer rhadamanthys

Executes dropped EXE 1 IoCs

pid	Process
3884	F273.tmp.exe

Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook	dllhost.exe
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook	dllhost.exe
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook	dllhost.exe
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	dllhost.exe
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	dllhost.exe
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	dllhost.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1572	2208	WerFault.exe	83

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dllhost.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	dllhost.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2208	tmp.exe
2208	tmp.exe
1504	dllhost.exe
1504	dllhost.exe
1504	dllhost.exe
1504	dllhost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2208 wrote to memory of 1504	2208	tmp.exe	84
PID 2208 wrote to memory of 1504	2208	tmp.exe	84
PID 2208 wrote to memory of 1504	2208	tmp.exe	84
PID 2208 wrote to memory of 1504	2208	tmp.exe	84

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	dllhost.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	dllhost.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2208
- C:\Windows\system32\dllhost.exe
  "C:\Windows\system32\dllhost.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - outlook_office_path
  - outlook_win_path
  PID:1504
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2208 -s 700
  2⤵
  - Program crash
  PID:1572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2208 -ip 2208
1⤵
PID:3136

C:\Users\Admin\AppData\Local\Temp\F273.tmp.exe
"C:\Users\Admin\AppData\Local\Temp\F273.tmp.exe"
1⤵
- Executes dropped EXE
PID:3884

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\F273.tmp.exe

Filesize
877KB

MD5
5fd30bde601c8d7b3d1486650d44f7cf

SHA1
86578f815e67293885878be187d61ed7f1fa573e

SHA256
207ccbaf358bed54df98aed79b7a7ed243392b550f5d5bf4d1a72ca7fbe56c52

SHA512
6bb7e60af4bf5a58054c42534967caf1c3f6652ec658741a52f3ed153e27717f6cec0df34daee2e76bb6d7358b6f40679b4a2d96ff974eb8b5eeae618be7e97b

Download Submit
C:\Users\Admin\AppData\Local\Temp\F273.tmp.exe

Filesize
877KB

MD5
5fd30bde601c8d7b3d1486650d44f7cf

SHA1
86578f815e67293885878be187d61ed7f1fa573e

SHA256
207ccbaf358bed54df98aed79b7a7ed243392b550f5d5bf4d1a72ca7fbe56c52

SHA512
6bb7e60af4bf5a58054c42534967caf1c3f6652ec658741a52f3ed153e27717f6cec0df34daee2e76bb6d7358b6f40679b4a2d96ff974eb8b5eeae618be7e97b

Download Submit
memory/1504-151-0x00007FF4D2790000-0x00007FF4D288A000-memory.dmp

Filesize
1000KB

Download
memory/1504-149-0x00007FF4D2790000-0x00007FF4D288A000-memory.dmp

Filesize
1000KB

Download
memory/1504-156-0x00007FF4D2790000-0x00007FF4D288A000-memory.dmp

Filesize
1000KB

Download
memory/1504-152-0x00007FF4D2790000-0x00007FF4D288A000-memory.dmp

Filesize
1000KB

Download
memory/1504-142-0x00000285473D0000-0x00000285473D1000-memory.dmp

Filesize
4KB

Download
memory/1504-150-0x00007FF4D2790000-0x00007FF4D288A000-memory.dmp

Filesize
1000KB

Download
memory/1504-144-0x00000285474F0000-0x00000285474F7000-memory.dmp

Filesize
28KB

Download
memory/1504-145-0x00007FF4D2790000-0x00007FF4D288A000-memory.dmp

Filesize
1000KB

Download
memory/1504-146-0x00007FF4D2790000-0x00007FF4D288A000-memory.dmp

Filesize
1000KB

Download
memory/2208-147-0x0000000000400000-0x000000000059F000-memory.dmp

Filesize
1.6MB

Download
memory/2208-148-0x0000000002310000-0x000000000232C000-memory.dmp

Filesize
112KB

Download
memory/2208-139-0x0000000002310000-0x000000000232C000-memory.dmp

Filesize
112KB

Download
memory/2208-143-0x0000000002360000-0x0000000002362000-memory.dmp

Filesize
8KB

Download
memory/2208-134-0x00000000022E0000-0x000000000230E000-memory.dmp

Filesize
184KB

Download
memory/2208-141-0x0000000002310000-0x000000000232C000-memory.dmp

Filesize
112KB

Download
memory/2208-138-0x0000000002310000-0x000000000232C000-memory.dmp

Filesize
112KB

Download
memory/2208-135-0x0000000000400000-0x000000000059F000-memory.dmp

Filesize
1.6MB

Download
memory/2208-140-0x0000000002330000-0x000000000234A000-memory.dmp

Filesize
104KB

Download
memory/3884-157-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3884-158-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download

Analysis

Sharing