bazarloader | 1763dae0289ebdfbf21ccb2e1e1509c3968ea4d950fba47d6fcf0dec86ebb792

General

Target

ret3e1.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/1192-2-0x0000000180000000-0x0000000180032000-memory.dmp	BazarLoaderVar1

Executes dropped EXE 2 IoCs

Processes:

RCC4EAD.exeRCC4EAD.exe

pid process

2056 RCC4EAD.exe
4036 RCC4EAD.exe

pid	process
2056	RCC4EAD.exe
4036	RCC4EAD.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RCC4EAD.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	RCC4EAD.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\\RCC4EAD.exe\\\" B7TP738\" & start \"H\" \"C:\\Users\\Admin\\AppData\\Local\\Temp\\RCC4EAD.exe\" B7TP738"	RCC4EAD.exe

Runs ping.exe 1 TTPs 3 IoCs

Remote System Discovery
T1018

Processes:

PING.EXEPING.EXEPING.EXE

pid process

3804 PING.EXE
3856 PING.EXE
540 PING.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

ret3e1.exe

pid process

1192 ret3e1.exe
1192 ret3e1.exe

pid	process
3804	PING.EXE
3856	PING.EXE
540	PING.EXE

pid	process
1192	ret3e1.exe
1192	ret3e1.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

ret3e1.execmd.exeret3e1.execmd.exeRCC4EAD.execmd.exe

description	pid	process	target process
PID 1192 wrote to memory of 2656	1192	ret3e1.exe	cmd.exe
PID 1192 wrote to memory of 2656	1192	ret3e1.exe	cmd.exe
PID 2656 wrote to memory of 540	2656	cmd.exe	PING.EXE
PID 2656 wrote to memory of 540	2656	cmd.exe	PING.EXE
PID 2656 wrote to memory of 2516	2656	cmd.exe	ret3e1.exe
PID 2656 wrote to memory of 2516	2656	cmd.exe	ret3e1.exe
PID 2516 wrote to memory of 976	2516	ret3e1.exe	cmd.exe
PID 2516 wrote to memory of 976	2516	ret3e1.exe	cmd.exe
PID 976 wrote to memory of 3804	976	cmd.exe	PING.EXE
PID 976 wrote to memory of 3804	976	cmd.exe	PING.EXE
PID 976 wrote to memory of 2056	976	cmd.exe	RCC4EAD.exe
PID 976 wrote to memory of 2056	976	cmd.exe	RCC4EAD.exe
PID 2056 wrote to memory of 3916	2056	RCC4EAD.exe	cmd.exe
PID 2056 wrote to memory of 3916	2056	RCC4EAD.exe	cmd.exe
PID 3916 wrote to memory of 3856	3916	cmd.exe	PING.EXE
PID 3916 wrote to memory of 3856	3916	cmd.exe	PING.EXE
PID 3916 wrote to memory of 4036	3916	cmd.exe	RCC4EAD.exe
PID 3916 wrote to memory of 4036	3916	cmd.exe	RCC4EAD.exe

C:\Users\Admin\AppData\Local\Temp\ret3e1.exe
"C:\Users\Admin\AppData\Local\Temp\ret3e1.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1192

C:\Windows\SYSTEM32\cmd.exe
cmd /c ping 8.8.8.8 -n 2 & C:\Users\Admin\AppData\Local\Temp\ret3e1.exe BC2NS
2⤵
- Suspicious use of WriteProcessMemory
PID:2656

C:\Windows\system32\PING.EXE
ping 8.8.8.8 -n 2
3⤵
- Runs ping.exe
PID:540

C:\Users\Admin\AppData\Local\Temp\ret3e1.exe
C:\Users\Admin\AppData\Local\Temp\ret3e1.exe BC2NS
3⤵
- Suspicious use of WriteProcessMemory
PID:2516

C:\Windows\SYSTEM32\cmd.exe
cmd /c ping 8.8.8.8 -n 2 & C:\Users\Admin\AppData\Local\Temp\RCC4EAD.exe DC8E
4⤵
- Suspicious use of WriteProcessMemory
PID:976

C:\Windows\system32\PING.EXE
ping 8.8.8.8 -n 2
5⤵
- Runs ping.exe
PID:3804

C:\Users\Admin\AppData\Local\Temp\RCC4EAD.exe
C:\Users\Admin\AppData\Local\Temp\RCC4EAD.exe DC8E
5⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2056

C:\Windows\SYSTEM32\cmd.exe
cmd /c ping 8.8.8.8 -n 2 & C:\Users\Admin\AppData\Local\Temp\RCC4EAD.exe B7TP738
6⤵
- Suspicious use of WriteProcessMemory
PID:3916

C:\Windows\system32\PING.EXE
ping 8.8.8.8 -n 2
7⤵
- Runs ping.exe
PID:3856

C:\Users\Admin\AppData\Local\Temp\RCC4EAD.exe
C:\Users\Admin\AppData\Local\Temp\RCC4EAD.exe B7TP738
7⤵
- Executes dropped EXE
PID:4036

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\RCC4EAD.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
C:\Users\Admin\AppData\Local\Temp\RCC4EAD.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
C:\Users\Admin\AppData\Local\Temp\RCC4EAD.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
\??\PIPE\wkssvc
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/540-4-0x0000000000000000-mapping.dmp

Download
memory/976-7-0x0000000000000000-mapping.dmp

Download
memory/1192-2-0x0000000180000000-0x0000000180032000-memory.dmp

Filesize
200KB

Download
memory/2056-9-0x0000000000000000-mapping.dmp

Download
memory/2516-5-0x0000000000000000-mapping.dmp

Download
memory/2656-3-0x0000000000000000-mapping.dmp

Download
memory/3804-8-0x0000000000000000-mapping.dmp

Download
memory/3856-15-0x0000000000000000-mapping.dmp

Download
memory/3916-14-0x0000000000000000-mapping.dmp

Download
memory/4036-16-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads