bazarloader | 291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

General

Target

rt3ret3.exe
Size

236KB
MD5

efa4b2e7d7016a1f80efff5840de3a18
SHA1

04606786daa6313867c7ada1f0c9c925d9b602fb
SHA256

291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b
SHA512

11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

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/4648-2-0x0000000180000000-0x0000000180032000-memory.dmp	BazarLoaderVar1

Executes dropped EXE 2 IoCs

Processes:

RCC29FF.exeRCC29FF.exe

pid process

3244 RCC29FF.exe
4372 RCC29FF.exe

pid	process
3244	RCC29FF.exe
4372	RCC29FF.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RCC29FF.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	RCC29FF.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\BFFLSPUL8 = "cmd.exe /c reg.exe add HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run /f /v R5MMYFWEP2 /t REG_SZ /d \"\\\"C:\\Users\\Admin\\AppData\\Local\\Temp\\RCC29FF.exe\\\" B7TP738\" & start \"H\" \"C:\\Users\\Admin\\AppData\\Local\\Temp\\RCC29FF.exe\" B7TP738"	RCC29FF.exe

Runs ping.exe 1 TTPs 3 IoCs

Remote System Discovery
T1018

Processes:

PING.EXEPING.EXEPING.EXE

pid process

3020 PING.EXE
1900 PING.EXE
4168 PING.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rt3ret3.exe

pid process

4648 rt3ret3.exe
4648 rt3ret3.exe

pid	process
3020	PING.EXE
1900	PING.EXE
4168	PING.EXE

pid	process
4648	rt3ret3.exe
4648	rt3ret3.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

rt3ret3.execmd.exert3ret3.execmd.exeRCC29FF.execmd.exe

description	pid	process	target process
PID 4648 wrote to memory of 4180	4648	rt3ret3.exe	cmd.exe
PID 4648 wrote to memory of 4180	4648	rt3ret3.exe	cmd.exe
PID 4180 wrote to memory of 4168	4180	cmd.exe	PING.EXE
PID 4180 wrote to memory of 4168	4180	cmd.exe	PING.EXE
PID 4180 wrote to memory of 3956	4180	cmd.exe	rt3ret3.exe
PID 4180 wrote to memory of 3956	4180	cmd.exe	rt3ret3.exe
PID 3956 wrote to memory of 3228	3956	rt3ret3.exe	cmd.exe
PID 3956 wrote to memory of 3228	3956	rt3ret3.exe	cmd.exe
PID 3228 wrote to memory of 3020	3228	cmd.exe	PING.EXE
PID 3228 wrote to memory of 3020	3228	cmd.exe	PING.EXE
PID 3228 wrote to memory of 3244	3228	cmd.exe	RCC29FF.exe
PID 3228 wrote to memory of 3244	3228	cmd.exe	RCC29FF.exe
PID 3244 wrote to memory of 4284	3244	RCC29FF.exe	cmd.exe
PID 3244 wrote to memory of 4284	3244	RCC29FF.exe	cmd.exe
PID 4284 wrote to memory of 1900	4284	cmd.exe	PING.EXE
PID 4284 wrote to memory of 1900	4284	cmd.exe	PING.EXE
PID 4284 wrote to memory of 4372	4284	cmd.exe	RCC29FF.exe
PID 4284 wrote to memory of 4372	4284	cmd.exe	RCC29FF.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:4648

C:\Windows\SYSTEM32\cmd.exe
cmd /c ping 8.8.8.8 -n 2 & C:\Users\Admin\AppData\Local\Temp\rt3ret3.exe BC2NS
2⤵
- Suspicious use of WriteProcessMemory
PID:4180

C:\Windows\system32\PING.EXE
ping 8.8.8.8 -n 2
3⤵
- Runs ping.exe
PID:4168

C:\Users\Admin\AppData\Local\Temp\rt3ret3.exe
C:\Users\Admin\AppData\Local\Temp\rt3ret3.exe BC2NS
3⤵
- Suspicious use of WriteProcessMemory
PID:3956

C:\Windows\SYSTEM32\cmd.exe
cmd /c ping 8.8.8.8 -n 2 & C:\Users\Admin\AppData\Local\Temp\RCC29FF.exe DC8E
4⤵
- Suspicious use of WriteProcessMemory
PID:3228

C:\Windows\system32\PING.EXE
ping 8.8.8.8 -n 2
5⤵
- Runs ping.exe
PID:3020

C:\Users\Admin\AppData\Local\Temp\RCC29FF.exe
C:\Users\Admin\AppData\Local\Temp\RCC29FF.exe DC8E
5⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3244

C:\Windows\SYSTEM32\cmd.exe
cmd /c ping 8.8.8.8 -n 2 & C:\Users\Admin\AppData\Local\Temp\RCC29FF.exe B7TP738
6⤵
- Suspicious use of WriteProcessMemory
PID:4284

C:\Windows\system32\PING.EXE
ping 8.8.8.8 -n 2
7⤵
- Runs ping.exe
PID:1900

C:\Users\Admin\AppData\Local\Temp\RCC29FF.exe
C:\Users\Admin\AppData\Local\Temp\RCC29FF.exe B7TP738
7⤵
- Executes dropped EXE
PID:4372

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\RCC29FF.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
C:\Users\Admin\AppData\Local\Temp\RCC29FF.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
C:\Users\Admin\AppData\Local\Temp\RCC29FF.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
memory/1900-14-0x0000000000000000-mapping.dmp

Download
memory/3020-8-0x0000000000000000-mapping.dmp

Download
memory/3228-7-0x0000000000000000-mapping.dmp

Download
memory/3244-9-0x0000000000000000-mapping.dmp

Download
memory/3956-5-0x0000000000000000-mapping.dmp

Download
memory/4168-4-0x0000000000000000-mapping.dmp

Download
memory/4180-3-0x0000000000000000-mapping.dmp

Download
memory/4284-13-0x0000000000000000-mapping.dmp

Download
memory/4372-15-0x0000000000000000-mapping.dmp

Download
memory/4648-2-0x0000000180000000-0x0000000180032000-memory.dmp

Filesize
200KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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