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
behavioral1/memory/1932-2-0x0000000180000000-0x0000000180032000-memory.dmp	BazarLoaderVar1

Executes dropped EXE 2 IoCs

Processes:

TSDFAD3.exeTSDFAD3.exe

pid process

760 TSDFAD3.exe
1484 TSDFAD3.exe
Loads dropped DLL 4 IoCs

Processes:

cmd.execmd.exe

pid process

804 cmd.exe
804 cmd.exe
476 cmd.exe
476 cmd.exe

pid	process
760	TSDFAD3.exe
1484	TSDFAD3.exe

pid	process
804	cmd.exe
804	cmd.exe
476	cmd.exe
476	cmd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

TSDFAD3.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\M6ZZR1BFFQ = "cmd.exe /c reg.exe add HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run /f /v MUCLW1SOI /t REG_SZ /d \"\\\"C:\\Users\\Admin\\AppData\\Local\\Temp\\TSDFAD3.exe\\\" M3OS\" & start \"H\" \"C:\\Users\\Admin\\AppData\\Local\\Temp\\TSDFAD3.exe\" M3OS"	TSDFAD3.exe

Runs ping.exe 1 TTPs 3 IoCs

Remote System Discovery
T1018

Processes:

PING.EXEPING.EXEPING.EXE

pid process

800 PING.EXE
980 PING.EXE
564 PING.EXE
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

rt3ret3.exe

pid process

1932 rt3ret3.exe

pid	process
800	PING.EXE
980	PING.EXE
564	PING.EXE

pid	process
1932	rt3ret3.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

rt3ret3.execmd.exert3ret3.execmd.exeTSDFAD3.execmd.exe

description	pid	process	target process
PID 1932 wrote to memory of 1748	1932	rt3ret3.exe	cmd.exe
PID 1932 wrote to memory of 1748	1932	rt3ret3.exe	cmd.exe
PID 1932 wrote to memory of 1748	1932	rt3ret3.exe	cmd.exe
PID 1748 wrote to memory of 800	1748	cmd.exe	PING.EXE
PID 1748 wrote to memory of 800	1748	cmd.exe	PING.EXE
PID 1748 wrote to memory of 800	1748	cmd.exe	PING.EXE
PID 1748 wrote to memory of 1804	1748	cmd.exe	rt3ret3.exe
PID 1748 wrote to memory of 1804	1748	cmd.exe	rt3ret3.exe
PID 1748 wrote to memory of 1804	1748	cmd.exe	rt3ret3.exe
PID 1804 wrote to memory of 804	1804	rt3ret3.exe	cmd.exe
PID 1804 wrote to memory of 804	1804	rt3ret3.exe	cmd.exe
PID 1804 wrote to memory of 804	1804	rt3ret3.exe	cmd.exe
PID 804 wrote to memory of 980	804	cmd.exe	PING.EXE
PID 804 wrote to memory of 980	804	cmd.exe	PING.EXE
PID 804 wrote to memory of 980	804	cmd.exe	PING.EXE
PID 804 wrote to memory of 760	804	cmd.exe	TSDFAD3.exe
PID 804 wrote to memory of 760	804	cmd.exe	TSDFAD3.exe
PID 804 wrote to memory of 760	804	cmd.exe	TSDFAD3.exe
PID 760 wrote to memory of 476	760	TSDFAD3.exe	cmd.exe
PID 760 wrote to memory of 476	760	TSDFAD3.exe	cmd.exe
PID 760 wrote to memory of 476	760	TSDFAD3.exe	cmd.exe
PID 476 wrote to memory of 564	476	cmd.exe	PING.EXE
PID 476 wrote to memory of 564	476	cmd.exe	PING.EXE
PID 476 wrote to memory of 564	476	cmd.exe	PING.EXE
PID 476 wrote to memory of 1484	476	cmd.exe	TSDFAD3.exe
PID 476 wrote to memory of 1484	476	cmd.exe	TSDFAD3.exe
PID 476 wrote to memory of 1484	476	cmd.exe	TSDFAD3.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:1932

C:\Windows\system32\cmd.exe
cmd /c ping 8.8.8.8 -n 2 & C:\Users\Admin\AppData\Local\Temp\rt3ret3.exe K4CWXJ
2⤵
- Suspicious use of WriteProcessMemory
PID:1748

C:\Windows\system32\PING.EXE
ping 8.8.8.8 -n 2
3⤵
- Runs ping.exe
PID:800

C:\Users\Admin\AppData\Local\Temp\rt3ret3.exe
C:\Users\Admin\AppData\Local\Temp\rt3ret3.exe K4CWXJ
3⤵
- Suspicious use of WriteProcessMemory
PID:1804

C:\Windows\system32\cmd.exe
cmd /c ping 8.8.8.8 -n 2 & C:\Users\Admin\AppData\Local\Temp\TSDFAD3.exe TQ75M5A
4⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:804

C:\Windows\system32\PING.EXE
ping 8.8.8.8 -n 2
5⤵
- Runs ping.exe
PID:980

C:\Users\Admin\AppData\Local\Temp\TSDFAD3.exe
C:\Users\Admin\AppData\Local\Temp\TSDFAD3.exe TQ75M5A
5⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:760

C:\Windows\system32\cmd.exe
cmd /c ping 8.8.8.8 -n 2 & C:\Users\Admin\AppData\Local\Temp\TSDFAD3.exe M3OS
6⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:476

C:\Windows\system32\PING.EXE
ping 8.8.8.8 -n 2
7⤵
- Runs ping.exe
PID:564

C:\Users\Admin\AppData\Local\Temp\TSDFAD3.exe
C:\Users\Admin\AppData\Local\Temp\TSDFAD3.exe M3OS
7⤵
- Executes dropped EXE
PID:1484

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\TSDFAD3.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
C:\Users\Admin\AppData\Local\Temp\TSDFAD3.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
C:\Users\Admin\AppData\Local\Temp\TSDFAD3.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
\Users\Admin\AppData\Local\Temp\TSDFAD3.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
\Users\Admin\AppData\Local\Temp\TSDFAD3.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
\Users\Admin\AppData\Local\Temp\TSDFAD3.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
\Users\Admin\AppData\Local\Temp\TSDFAD3.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
memory/476-15-0x0000000000000000-mapping.dmp

Download
memory/564-16-0x0000000000000000-mapping.dmp

Download
memory/760-12-0x0000000000000000-mapping.dmp

Download
memory/800-4-0x0000000000000000-mapping.dmp

Download
memory/804-7-0x0000000000000000-mapping.dmp

Download
memory/980-8-0x0000000000000000-mapping.dmp

Download
memory/1484-19-0x0000000000000000-mapping.dmp

Download
memory/1748-3-0x0000000000000000-mapping.dmp

Download
memory/1804-5-0x0000000000000000-mapping.dmp

Download
memory/1932-2-0x0000000180000000-0x0000000180032000-memory.dmp

Filesize
200KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads