bazarloader | ad32fdcd1887745514a65589457d2449d9fd6549e1cc2501bb73217ae40f21fd

General

Target

rt3ret3.exe

Score

10^/10

bazarloader dropper loader persistence

Malware Config

Signatures

Bazar Loader
Detected loader normally used to deploy BazarBackdoor malware.
loader dropper bazarloader

Bazar/Team9 Loader payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1812-2-0x0000000180000000-0x0000000180032000-memory.dmp	BazarLoaderVar1

Executes dropped EXE 2 IoCs

Processes:

P727291.exeP727291.exe

pid process

1540 P727291.exe
3444 P727291.exe

pid	process
1540	P727291.exe
3444	P727291.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

P727291.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	P727291.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\NYN5BCCBN6G = "cmd.exe /c reg.exe add HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run /f /v RRQ5OHCW /t REG_SZ /d \"\\\"C:\\Users\\Admin\\AppData\\Local\\Temp\\P727291.exe\\\" HF75M\" & start \"H\" \"C:\\Users\\Admin\\AppData\\Local\\Temp\\P727291.exe\" HF75M"	P727291.exe

Runs ping.exe 1 TTPs 3 IoCs

Remote System Discovery
T1018

Processes:

PING.EXEPING.EXEPING.EXE

pid process

2804 PING.EXE
3044 PING.EXE
2552 PING.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rt3ret3.exe

pid process

1812 rt3ret3.exe
1812 rt3ret3.exe

pid	process
2804	PING.EXE
3044	PING.EXE
2552	PING.EXE

pid	process
1812	rt3ret3.exe
1812	rt3ret3.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

rt3ret3.execmd.exert3ret3.execmd.exeP727291.execmd.exe

description	pid	process	target process
PID 1812 wrote to memory of 3744	1812	rt3ret3.exe	cmd.exe
PID 1812 wrote to memory of 3744	1812	rt3ret3.exe	cmd.exe
PID 3744 wrote to memory of 2804	3744	cmd.exe	PING.EXE
PID 3744 wrote to memory of 2804	3744	cmd.exe	PING.EXE
PID 3744 wrote to memory of 3916	3744	cmd.exe	rt3ret3.exe
PID 3744 wrote to memory of 3916	3744	cmd.exe	rt3ret3.exe
PID 3916 wrote to memory of 3932	3916	rt3ret3.exe	cmd.exe
PID 3916 wrote to memory of 3932	3916	rt3ret3.exe	cmd.exe
PID 3932 wrote to memory of 3044	3932	cmd.exe	PING.EXE
PID 3932 wrote to memory of 3044	3932	cmd.exe	PING.EXE
PID 3932 wrote to memory of 1540	3932	cmd.exe	P727291.exe
PID 3932 wrote to memory of 1540	3932	cmd.exe	P727291.exe
PID 1540 wrote to memory of 964	1540	P727291.exe	cmd.exe
PID 1540 wrote to memory of 964	1540	P727291.exe	cmd.exe
PID 964 wrote to memory of 2552	964	cmd.exe	PING.EXE
PID 964 wrote to memory of 2552	964	cmd.exe	PING.EXE
PID 964 wrote to memory of 3444	964	cmd.exe	P727291.exe
PID 964 wrote to memory of 3444	964	cmd.exe	P727291.exe

C:\Users\Admin\AppData\Local\Temp\rt3ret3.exe
"C:\Users\Admin\AppData\Local\Temp\rt3ret3.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1812

C:\Windows\SYSTEM32\cmd.exe
cmd /c ping 8.8.8.8 -n 2 & C:\Users\Admin\AppData\Local\Temp\rt3ret3.exe DWVS2WX
2⤵
- Suspicious use of WriteProcessMemory
PID:3744

C:\Windows\system32\PING.EXE
ping 8.8.8.8 -n 2
3⤵
- Runs ping.exe
PID:2804

C:\Users\Admin\AppData\Local\Temp\rt3ret3.exe
C:\Users\Admin\AppData\Local\Temp\rt3ret3.exe DWVS2WX
3⤵
- Suspicious use of WriteProcessMemory
PID:3916

C:\Windows\SYSTEM32\cmd.exe
cmd /c ping 8.8.8.8 -n 2 & C:\Users\Admin\AppData\Local\Temp\P727291.exe L45Q2T
4⤵
- Suspicious use of WriteProcessMemory
PID:3932

C:\Windows\system32\PING.EXE
ping 8.8.8.8 -n 2
5⤵
- Runs ping.exe
PID:3044

C:\Users\Admin\AppData\Local\Temp\P727291.exe
C:\Users\Admin\AppData\Local\Temp\P727291.exe L45Q2T
5⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1540

C:\Windows\SYSTEM32\cmd.exe
cmd /c ping 8.8.8.8 -n 2 & C:\Users\Admin\AppData\Local\Temp\P727291.exe HF75M
6⤵
- Suspicious use of WriteProcessMemory
PID:964

C:\Windows\system32\PING.EXE
ping 8.8.8.8 -n 2
7⤵
- Runs ping.exe
PID:2552

C:\Users\Admin\AppData\Local\Temp\P727291.exe
C:\Users\Admin\AppData\Local\Temp\P727291.exe HF75M
7⤵
- Executes dropped EXE
PID:3444

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\P727291.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
C:\Users\Admin\AppData\Local\Temp\P727291.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
C:\Users\Admin\AppData\Local\Temp\P727291.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
memory/964-13-0x0000000000000000-mapping.dmp

Download
memory/1540-9-0x0000000000000000-mapping.dmp

Download
memory/1812-2-0x0000000180000000-0x0000000180032000-memory.dmp

Filesize
200KB

Download
memory/2552-14-0x0000000000000000-mapping.dmp

Download
memory/2804-4-0x0000000000000000-mapping.dmp

Download
memory/3044-8-0x0000000000000000-mapping.dmp

Download
memory/3444-15-0x0000000000000000-mapping.dmp

Download
memory/3744-3-0x0000000000000000-mapping.dmp

Download
memory/3916-5-0x0000000000000000-mapping.dmp

Download
memory/3932-7-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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