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
behavioral1/memory/1908-2-0x0000000180000000-0x0000000180032000-memory.dmp	BazarLoaderVar1

Executes dropped EXE 2 IoCs

Processes:

TSDFD62.exeTSDFD62.exe

pid process

1076 TSDFD62.exe
1080 TSDFD62.exe
Loads dropped DLL 4 IoCs

Processes:

cmd.execmd.exe

pid process

768 cmd.exe
768 cmd.exe
904 cmd.exe
904 cmd.exe

pid	process
1076	TSDFD62.exe
1080	TSDFD62.exe

pid	process
768	cmd.exe
768	cmd.exe
904	cmd.exe
904	cmd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

TSDFD62.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\\TSDFD62.exe\\\" M3OS\" & start \"H\" \"C:\\Users\\Admin\\AppData\\Local\\Temp\\TSDFD62.exe\" M3OS"	TSDFD62.exe

Runs ping.exe 1 TTPs 3 IoCs

Remote System Discovery
T1018

Processes:

PING.EXEPING.EXEPING.EXE

pid process

1212 PING.EXE
1152 PING.EXE
1452 PING.EXE
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

rt3ret3.exe

pid process

1908 rt3ret3.exe

pid	process
1212	PING.EXE
1152	PING.EXE
1452	PING.EXE

pid	process
1908	rt3ret3.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

rt3ret3.execmd.exert3ret3.execmd.exeTSDFD62.execmd.exe

description	pid	process	target process
PID 1908 wrote to memory of 324	1908	rt3ret3.exe	cmd.exe
PID 1908 wrote to memory of 324	1908	rt3ret3.exe	cmd.exe
PID 1908 wrote to memory of 324	1908	rt3ret3.exe	cmd.exe
PID 324 wrote to memory of 1212	324	cmd.exe	PING.EXE
PID 324 wrote to memory of 1212	324	cmd.exe	PING.EXE
PID 324 wrote to memory of 1212	324	cmd.exe	PING.EXE
PID 324 wrote to memory of 1896	324	cmd.exe	rt3ret3.exe
PID 324 wrote to memory of 1896	324	cmd.exe	rt3ret3.exe
PID 324 wrote to memory of 1896	324	cmd.exe	rt3ret3.exe
PID 1896 wrote to memory of 768	1896	rt3ret3.exe	cmd.exe
PID 1896 wrote to memory of 768	1896	rt3ret3.exe	cmd.exe
PID 1896 wrote to memory of 768	1896	rt3ret3.exe	cmd.exe
PID 768 wrote to memory of 1152	768	cmd.exe	PING.EXE
PID 768 wrote to memory of 1152	768	cmd.exe	PING.EXE
PID 768 wrote to memory of 1152	768	cmd.exe	PING.EXE
PID 768 wrote to memory of 1076	768	cmd.exe	TSDFD62.exe
PID 768 wrote to memory of 1076	768	cmd.exe	TSDFD62.exe
PID 768 wrote to memory of 1076	768	cmd.exe	TSDFD62.exe
PID 1076 wrote to memory of 904	1076	TSDFD62.exe	cmd.exe
PID 1076 wrote to memory of 904	1076	TSDFD62.exe	cmd.exe
PID 1076 wrote to memory of 904	1076	TSDFD62.exe	cmd.exe
PID 904 wrote to memory of 1452	904	cmd.exe	PING.EXE
PID 904 wrote to memory of 1452	904	cmd.exe	PING.EXE
PID 904 wrote to memory of 1452	904	cmd.exe	PING.EXE
PID 904 wrote to memory of 1080	904	cmd.exe	TSDFD62.exe
PID 904 wrote to memory of 1080	904	cmd.exe	TSDFD62.exe
PID 904 wrote to memory of 1080	904	cmd.exe	TSDFD62.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:1908

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:324

C:\Windows\system32\PING.EXE
ping 8.8.8.8 -n 2
3⤵
- Runs ping.exe
PID:1212

C:\Users\Admin\AppData\Local\Temp\rt3ret3.exe
C:\Users\Admin\AppData\Local\Temp\rt3ret3.exe K4CWXJ
3⤵
- Suspicious use of WriteProcessMemory
PID:1896

C:\Windows\system32\cmd.exe
cmd /c ping 8.8.8.8 -n 2 & C:\Users\Admin\AppData\Local\Temp\TSDFD62.exe TQ75M5A
4⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:768

C:\Windows\system32\PING.EXE
ping 8.8.8.8 -n 2
5⤵
- Runs ping.exe
PID:1152

C:\Users\Admin\AppData\Local\Temp\TSDFD62.exe
C:\Users\Admin\AppData\Local\Temp\TSDFD62.exe TQ75M5A
5⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1076

C:\Windows\system32\cmd.exe
cmd /c ping 8.8.8.8 -n 2 & C:\Users\Admin\AppData\Local\Temp\TSDFD62.exe M3OS
6⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:904

C:\Windows\system32\PING.EXE
ping 8.8.8.8 -n 2
7⤵
- Runs ping.exe
PID:1452

C:\Users\Admin\AppData\Local\Temp\TSDFD62.exe
C:\Users\Admin\AppData\Local\Temp\TSDFD62.exe M3OS
7⤵
- Executes dropped EXE
PID:1080

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\TSDFD62.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
C:\Users\Admin\AppData\Local\Temp\TSDFD62.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
C:\Users\Admin\AppData\Local\Temp\TSDFD62.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
\??\PIPE\wkssvc
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\Users\Admin\AppData\Local\Temp\TSDFD62.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
\Users\Admin\AppData\Local\Temp\TSDFD62.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
\Users\Admin\AppData\Local\Temp\TSDFD62.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
\Users\Admin\AppData\Local\Temp\TSDFD62.exe
MD5
efa4b2e7d7016a1f80efff5840de3a18

SHA1
04606786daa6313867c7ada1f0c9c925d9b602fb

SHA256
291c573996c647508544e8e21bd2764e6e4c834d53d6d2c8903a0001c783764b

SHA512
11446166922efb329d547ce329fb3ed70a3a99c1c037533beaecefd16d4a67c9dc9201592b0428a06fd956e4bb5caf3f7997a86200792e3e29a041f0963b2ced

Download Submit
memory/324-3-0x0000000000000000-mapping.dmp

Download
memory/768-7-0x0000000000000000-mapping.dmp

Download
memory/904-15-0x0000000000000000-mapping.dmp

Download
memory/1076-12-0x0000000000000000-mapping.dmp

Download
memory/1080-19-0x0000000000000000-mapping.dmp

Download
memory/1152-8-0x0000000000000000-mapping.dmp

Download
memory/1212-4-0x0000000000000000-mapping.dmp

Download
memory/1452-16-0x0000000000000000-mapping.dmp

Download
memory/1896-5-0x0000000000000000-mapping.dmp

Download
memory/1908-2-0x0000000180000000-0x0000000180032000-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