bazarbackdoor | 6141566287a4de53c826f96492ddf53acd36ff44f90f380011b8ed5f672fef6b

General

Target

t64.exe
Size

724KB
MD5

6d9047478abba33d7fbb15d602859103
SHA1

0f97c7af1e4185d2dfa1a9af5ae4c9ad3bfc897a
SHA256

6141566287a4de53c826f96492ddf53acd36ff44f90f380011b8ed5f672fef6b
SHA512

4ba43b8480acff2709045baa9cc58c5f1123af98b98e391a43e0cd506163765ab25cbebe070ad3aaeee4642be1d1f3881625c0ce8e1440dc99502ce79d2c0ee7

Score

10^/10

bazarbackdoor backdoor

Malware Config

Signatures

BazarBackdoor 5 IoCs

Stealthy backdoor targeting corporate networks, believed to be developed by Trickbot's authors.

backdoor bazarbackdoor

Processes:

description	flow	ioc
HTTP URL	31	https://ikjumnh.xyz/72c5e676b29f5ec54d226eb16133c4da/2
HTTP URL	21	https://citycafeonline.com/72c5e676b29f5ec54d226eb16133c4da/4
HTTP URL	28	https://ikjumnh.xyz/72c5e676b29f5ec54d226eb16133c4da/4
HTTP URL	29	https://ikjumnh.xyz/72c5e676b29f5ec54d226eb16133c4da/4
HTTP URL	30	https://ikjumnh.xyz/72c5e676b29f5ec54d226eb16133c4da/4

Blacklisted process makes network request 9 IoCs

Processes:

cmd.exe

flow pid process

21 2040 cmd.exe
23 2040 cmd.exe
24 2040 cmd.exe
25 2040 cmd.exe
26 2040 cmd.exe
28 2040 cmd.exe
29 2040 cmd.exe
30 2040 cmd.exe
31 2040 cmd.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

t64.exe

description pid process target process

PID 1700 set thread context of 2040 1700 t64.exe cmd.exe

flow	pid	process
21	2040	cmd.exe
23	2040	cmd.exe
24	2040	cmd.exe
25	2040	cmd.exe
26	2040	cmd.exe
28	2040	cmd.exe
29	2040	cmd.exe
30	2040	cmd.exe
31	2040	cmd.exe

description	pid	process	target process
PID 1700 set thread context of 2040	1700	t64.exe	cmd.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

t64.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13	t64.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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	t64.exe

Suspicious use of WriteProcessMemory 852 IoCs

Processes:

t64.exe

description	pid	process	target process
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe
PID 1700 wrote to memory of 2040	1700	t64.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\t64.exe
"C:\Users\Admin\AppData\Local\Temp\t64.exe"
1⤵
- Suspicious use of SetThreadContext
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
PID:1700

C:\Windows\System32\cmd.exe
C:\Windows\System32\cmd.exe
2⤵
- Blacklisted process makes network request
PID:2040

C:\Users\Admin\AppData\Local\Temp\t64.exe
C:\Users\Admin\AppData\Local\Temp\t64.exe 2651168955
1⤵
PID:296

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

1

T1130

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/296-4-0x0000000000490000-0x00000000004BC000-memory.dmp

Filesize
176KB

Download
memory/608-2-0x000007FEF6200000-0x000007FEF647A000-memory.dmp

Filesize
2.5MB

Download
memory/1700-1-0x0000000001BC0000-0x0000000001BEC000-memory.dmp

Filesize
176KB

Download
memory/1700-0-0x0000000001B90000-0x0000000001BBC000-memory.dmp

Filesize
176KB

Download
memory/2040-5-0x000000004A8E0000-0x000000004A924000-memory.dmp

Filesize
272KB

Download
memory/2040-6-0x000000004A8FD788-mapping.dmp

Download
memory/2040-7-0x000000004A8E0000-0x000000004A924000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads