bazarbackdoor | 842e396f05d590ec88da30e6180dfb29a7aec16e3ef5b49398fde8b79e4090bd

General

Target

tret.exe
Size

386KB
MD5

ee1db7f0ad39df1af6eb5166447b1471
SHA1

9111bc344d733b1aba0aef2e81b5e9fbc9d01e8f
SHA256

842e396f05d590ec88da30e6180dfb29a7aec16e3ef5b49398fde8b79e4090bd
SHA512

26366e9fbc998105a4ee00ab91abb4110fc8849a513a29821e3611a3762cfb083722bc83836704de87531e9164d648e16b6a381daa3f046ead17ac4422fab0e0

Score

10^/10

bazarbackdoor bazarloader backdoor dropper loader

Malware Config

Signatures

Bazar Loader
Detected loader normally used to deploy BazarBackdoor malware.
loader dropper bazarloader
BazarBackdoor
Stealthy backdoor targeting corporate networks, believed to be developed by Trickbot's authors.
backdoor bazarbackdoor

Bazar/Team9 Backdoor payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1684-64-0x000000004A620000-0x000000004A671000-memory.dmp	BazarBackdoorVar4
behavioral1/memory/1684-65-0x000000004A644554-mapping.dmp	BazarBackdoorVar4
behavioral1/memory/1684-66-0x000000004A620000-0x000000004A671000-memory.dmp	BazarBackdoorVar4

Bazar/Team9 Loader payload 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1056-59-0x0000000001B90000-0x0000000001BCE000-memory.dmp	BazarLoaderVar6
behavioral1/memory/1608-62-0x0000000001B80000-0x0000000001BBE000-memory.dmp	BazarLoaderVar6

Blocklisted process makes network request 5 IoCs

Processes:

cmd.exe

flow pid process

12 1684 cmd.exe
13 1684 cmd.exe
14 1684 cmd.exe
15 1684 cmd.exe
16 1684 cmd.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

tret.exe

description pid process target process

PID 1056 set thread context of 1684 1056 tret.exe cmd.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

tret.exe

pid process

1056 tret.exe
1056 tret.exe
1056 tret.exe

flow	pid	process
12	1684	cmd.exe
13	1684	cmd.exe
14	1684	cmd.exe
15	1684	cmd.exe
16	1684	cmd.exe

description	pid	process	target process
PID 1056 set thread context of 1684	1056	tret.exe	cmd.exe

pid	process
1056	tret.exe
1056	tret.exe
1056	tret.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

tret.exe

description	pid	process	target process
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe
PID 1056 wrote to memory of 1684	1056	tret.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\tret.exe
"C:\Users\Admin\AppData\Local\Temp\tret.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1056

C:\Windows\System32\cmd.exe
C:\Windows\System32\cmd.exe
2⤵
- Blocklisted process makes network request
PID:1684

C:\Users\Admin\AppData\Local\Temp\tret.exe
C:\Users\Admin\AppData\Local\Temp\tret.exe 1749236604
1⤵
PID:1608

Network

MITRE ATT&CK Matrix

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
MD5
8a9f8af922615629fc40c95ccc6203a7

SHA1
f6a42a78d12a8b9ed60d2ef7df2c7d4df80a3797

SHA256
0c2e4dafa5a93a48948bb69814f92719c9ee8d48d0fe457eec1b2affacb43a0a

SHA512
32fa9510f2609ff04ed9e1d16563da4a7cd7f40d1bfdbf24c13689b3cdb8a0dc76d60358fc3869986a2c8a41731294e5546e5f354c6f6ae7dc38167e7cdb866f

Download Submit
memory/1056-59-0x0000000001B90000-0x0000000001BCE000-memory.dmp

Filesize
248KB

Download
memory/1056-61-0x000007FEFBFF1000-0x000007FEFBFF3000-memory.dmp

Filesize
8KB

Download
memory/1608-62-0x0000000001B80000-0x0000000001BBE000-memory.dmp

Filesize
248KB

Download
memory/1684-64-0x000000004A620000-0x000000004A671000-memory.dmp

Filesize
324KB

Download
memory/1684-65-0x000000004A644554-mapping.dmp

Download
memory/1684-66-0x000000004A620000-0x000000004A671000-memory.dmp

Filesize
324KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads