bazarloader | c882f778e40b276c90d467816deda7605d9955e4302aa6ab7467aeae3f155048

Resubmissions

29-07-2021 08:36

210729-5h67qwvrd2 10

27-07-2021 14:54

210727-v3d6d2mxcs 10

Analysis

max time kernel
88s
max time network
41s
platform
windows7_x64
resource
win7v20210408
submitted
27-07-2021 14:54

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General

Target

iCoreBr.jpg.dll
Size

1.3MB
MD5

132e6560ca121679635684e812586bba
SHA1

6f48b7929e65aac27f3bf3cce24c7ad40624dc74
SHA256

c882f778e40b276c90d467816deda7605d9955e4302aa6ab7467aeae3f155048
SHA512

3c3fd439c29e36a2ef174f82c4df36c89a87bbc2e280753166bc25b14b6066fc6b0eff7101e4b301e51722271b76ebdb79dbf58a201a7a4c8bcb64e708e6a4a5

Score

10^/10

bazarloader dropper loader

Malware Config

Signatures

Bazar Loader
Detected loader normally used to deploy BazarBackdoor malware.
loader dropper bazarloader

Bazar/Team9 Loader payload 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/468-60-0x0000000027340000-0x00000000273A4000-memory.dmp	BazarLoaderVar3
behavioral1/memory/692-65-0x0000000002010000-0x0000000002074000-memory.dmp	BazarLoaderVar3

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1520 PING.EXE
Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs

Processes:

regsvr32.exe

pid process

692 regsvr32.exe

pid	process
1520	PING.EXE

pid	process
692	regsvr32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

regsvr32.execmd.exe

description	pid	process	target process
PID 468 wrote to memory of 1604	468	regsvr32.exe	cmd.exe
PID 468 wrote to memory of 1604	468	regsvr32.exe	cmd.exe
PID 468 wrote to memory of 1604	468	regsvr32.exe	cmd.exe
PID 1604 wrote to memory of 1520	1604	cmd.exe	PING.EXE
PID 1604 wrote to memory of 1520	1604	cmd.exe	PING.EXE
PID 1604 wrote to memory of 1520	1604	cmd.exe	PING.EXE
PID 1604 wrote to memory of 692	1604	cmd.exe	regsvr32.exe
PID 1604 wrote to memory of 692	1604	cmd.exe	regsvr32.exe
PID 1604 wrote to memory of 692	1604	cmd.exe	regsvr32.exe
PID 1604 wrote to memory of 692	1604	cmd.exe	regsvr32.exe
PID 1604 wrote to memory of 692	1604	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:468

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:1604

C:\Windows\system32\PING.EXE
ping 127.0.0.1 -n 8
3⤵
- Runs ping.exe
PID:1520

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: CmdExeWriteProcessMemorySpam
PID:692

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Remote System Discovery

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/468-59-0x000007FEFB531000-0x000007FEFB533000-memory.dmp

Filesize
8KB

Download
memory/468-60-0x0000000027340000-0x00000000273A4000-memory.dmp

Filesize
400KB

Download
memory/692-63-0x0000000000000000-mapping.dmp

Download
memory/692-65-0x0000000002010000-0x0000000002074000-memory.dmp

Filesize
400KB

Download
memory/1520-62-0x0000000000000000-mapping.dmp

Download
memory/1604-61-0x0000000000000000-mapping.dmp

Download