bazarloader | c882f778e40b276c90d467816deda7605d9955e4302aa6ab7467aeae3f155048

General

Target

iCoreBr.jpg.dll
Size

1.3MB
MD5

132e6560ca121679635684e812586bba
SHA1

6f48b7929e65aac27f3bf3cce24c7ad40624dc74
SHA256

c882f778e40b276c90d467816deda7605d9955e4302aa6ab7467aeae3f155048
SHA512

3c3fd439c29e36a2ef174f82c4df36c89a87bbc2e280753166bc25b14b6066fc6b0eff7101e4b301e51722271b76ebdb79dbf58a201a7a4c8bcb64e708e6a4a5

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 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4648-118-0x0000000027E90000-0x0000000027EF4000-memory.dmp	BazarLoaderVar3
behavioral2/memory/4296-126-0x00000000278F0000-0x0000000027954000-memory.dmp	BazarLoaderVar3
behavioral2/memory/1692-139-0x0000000028340000-0x00000000283A4000-memory.dmp	BazarLoaderVar3

Loads dropped DLL 1 IoCs

Processes:

regsvr32.exe

pid process

1692 regsvr32.exe

pid	process
1692	regsvr32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\RealtechUpdate = "\"C:\\Windows\\system32\\regsvr32.exe\" /s \"C:\\Users\\Admin\\AppData\\Local\\Temp\\Damp\\coianewos.exe\" mscp arih"	reg.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

reg.exe

pid process

1496 reg.exe
Runs ping.exe 1 TTPs 2 IoCs

Remote System Discovery
T1018

Processes:

PING.EXEPING.EXE

pid process

1432 PING.EXE
4264 PING.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

regsvr32.exe

pid process

4296 regsvr32.exe
4296 regsvr32.exe

pid	process
1496	reg.exe

pid	process
1432	PING.EXE
4264	PING.EXE

pid	process
4296	regsvr32.exe
4296	regsvr32.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

regsvr32.execmd.exeregsvr32.execmd.execmd.exe

description	pid	process	target process
PID 4648 wrote to memory of 4036	4648	regsvr32.exe	cmd.exe
PID 4648 wrote to memory of 4036	4648	regsvr32.exe	cmd.exe
PID 4036 wrote to memory of 4264	4036	cmd.exe	PING.EXE
PID 4036 wrote to memory of 4264	4036	cmd.exe	PING.EXE
PID 4036 wrote to memory of 4296	4036	cmd.exe	regsvr32.exe
PID 4036 wrote to memory of 4296	4036	cmd.exe	regsvr32.exe
PID 4296 wrote to memory of 668	4296	regsvr32.exe	cmd.exe
PID 4296 wrote to memory of 668	4296	regsvr32.exe	cmd.exe
PID 4296 wrote to memory of 64	4296	regsvr32.exe	cmd.exe
PID 4296 wrote to memory of 64	4296	regsvr32.exe	cmd.exe
PID 4296 wrote to memory of 584	4296	regsvr32.exe	cmd.exe
PID 4296 wrote to memory of 584	4296	regsvr32.exe	cmd.exe
PID 584 wrote to memory of 1432	584	cmd.exe	PING.EXE
PID 584 wrote to memory of 1432	584	cmd.exe	PING.EXE
PID 64 wrote to memory of 1496	64	cmd.exe	reg.exe
PID 64 wrote to memory of 1496	64	cmd.exe	reg.exe
PID 584 wrote to memory of 1692	584	cmd.exe	regsvr32.exe
PID 584 wrote to memory of 1692	584	cmd.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\iCoreBr.jpg.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4648

C:\Windows\system32\cmd.exe
cmd /c ping 127.0.0.1 -n 8 & "C:\Windows\system32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\iCoreBr.jpg.dll" mscp ahis & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4036

C:\Windows\system32\PING.EXE
ping 127.0.0.1 -n 8
3⤵
- Runs ping.exe
PID:4264

C:\Windows\system32\regsvr32.exe
"C:\Windows\system32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\iCoreBr.jpg.dll" mscp ahis
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4296

C:\Windows\system32\cmd.exe
cmd.exe /c echo %temp%
4⤵
PID:668

C:\Windows\system32\cmd.exe
cmd.exe /c reg.exe add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v RealtechUpdate /t REG_SZ /d "\"C:\Windows\system32\regsvr32.exe\" /s \"C:\Users\Admin\AppData\Local\Temp\Damp\coianewos.exe\" mscp arih"
4⤵
- Suspicious use of WriteProcessMemory
PID:64

C:\Windows\system32\reg.exe
reg.exe add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v RealtechUpdate /t REG_SZ /d "\"C:\Windows\system32\regsvr32.exe\" /s \"C:\Users\Admin\AppData\Local\Temp\Damp\coianewos.exe\" mscp arih"
5⤵
- Adds Run key to start application
- Modifies registry key
PID:1496

C:\Windows\system32\cmd.exe
cmd /c ping 127.0.0.1 -n 8 & "C:\Windows\system32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\Damp\coianewos.exe" mscp arih & exit
4⤵
- Suspicious use of WriteProcessMemory
PID:584

C:\Windows\system32\PING.EXE
ping 127.0.0.1 -n 8
5⤵
- Runs ping.exe
PID:1432

C:\Windows\system32\regsvr32.exe
"C:\Windows\system32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\Damp\coianewos.exe" mscp arih
5⤵
- Loads dropped DLL
PID:1692

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\Damp\coianewos.exe
MD5
132e6560ca121679635684e812586bba

SHA1
6f48b7929e65aac27f3bf3cce24c7ad40624dc74

SHA256
c882f778e40b276c90d467816deda7605d9955e4302aa6ab7467aeae3f155048

SHA512
3c3fd439c29e36a2ef174f82c4df36c89a87bbc2e280753166bc25b14b6066fc6b0eff7101e4b301e51722271b76ebdb79dbf58a201a7a4c8bcb64e708e6a4a5

Download Submit
\Users\Admin\AppData\Local\Temp\Damp\coianewos.exe
MD5
132e6560ca121679635684e812586bba

SHA1
6f48b7929e65aac27f3bf3cce24c7ad40624dc74

SHA256
c882f778e40b276c90d467816deda7605d9955e4302aa6ab7467aeae3f155048

SHA512
3c3fd439c29e36a2ef174f82c4df36c89a87bbc2e280753166bc25b14b6066fc6b0eff7101e4b301e51722271b76ebdb79dbf58a201a7a4c8bcb64e708e6a4a5

Download Submit
memory/64-128-0x0000000000000000-mapping.dmp

Download
memory/584-129-0x0000000000000000-mapping.dmp

Download
memory/668-127-0x0000000000000000-mapping.dmp

Download
memory/1432-130-0x0000000000000000-mapping.dmp

Download
memory/1496-131-0x0000000000000000-mapping.dmp

Download
memory/1692-132-0x0000000000000000-mapping.dmp

Download
memory/1692-139-0x0000000028340000-0x00000000283A4000-memory.dmp

Filesize
400KB

Download
memory/4036-119-0x0000000000000000-mapping.dmp

Download
memory/4264-120-0x0000000000000000-mapping.dmp

Download
memory/4296-126-0x00000000278F0000-0x0000000027954000-memory.dmp

Filesize
400KB

Download
memory/4296-121-0x0000000000000000-mapping.dmp

Download
memory/4648-118-0x0000000027E90000-0x0000000027EF4000-memory.dmp

Filesize
400KB

Download
memory/4648-115-0x0000000000E40000-0x0000000000E42000-memory.dmp

Filesize
8KB

Download
memory/4648-117-0x0000000000E40000-0x0000000000E42000-memory.dmp

Filesize
8KB

Download
memory/4648-116-0x0000000000E40000-0x0000000000E42000-memory.dmp

Filesize
8KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads