Malware Analysis Report

2024-08-06 01:45

Sample ID 240411-ptscjaeg6y
Target ed70c9a9168a3b6f7ac56ae48e60b583_JaffaCakes118
SHA256 29fc04ad420d5b64e7f420c6d9b4f86b9ee4e36483538d4e3b1835950baca760
Tags
bazarloader dropper loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

29fc04ad420d5b64e7f420c6d9b4f86b9ee4e36483538d4e3b1835950baca760

Threat Level: Known bad

The file ed70c9a9168a3b6f7ac56ae48e60b583_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

bazarloader dropper loader

Bazar Loader

Bazar/Team9 Loader payload

Blocklisted process makes network request

Checks computer location settings

Deletes itself

Loads dropped DLL

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
System Information Discovery
T1082
Query Registry
T1012
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-04-11 12:37

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-11 12:37

Reported

2024-04-11 12:40

Platform

win7-20240221-en

Max time kernel

117s

Max time network

121s

Command Line

cmd /c C:\Users\Admin\AppData\Local\Temp\Documents.lnk

Signatures

Bazar Loader

loader dropper bazarloader

Bazar/Team9 Loader payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\System32\cmd.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\system32\rundll32.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2344 wrote to memory of 2564 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\cmd.exe
PID 2344 wrote to memory of 2564 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\cmd.exe
PID 2344 wrote to memory of 2564 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\cmd.exe
PID 2564 wrote to memory of 2532 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\xcopy.exe
PID 2564 wrote to memory of 2532 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\xcopy.exe
PID 2564 wrote to memory of 2532 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\xcopy.exe
PID 2564 wrote to memory of 2608 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\rundll32.exe
PID 2564 wrote to memory of 2608 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\rundll32.exe
PID 2564 wrote to memory of 2608 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\rundll32.exe

Processes

C:\Windows\system32\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\Documents.lnk

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C xcopy /H Documents.tmp c:\programdata && start rundll32.exe c:\programdata\Documents.tmp,EnterDll && del Documents.lnk && del Documents.tmp && mkdir Documents && exit

C:\Windows\system32\xcopy.exe

xcopy /H Documents.tmp c:\programdata

C:\Windows\system32\rundll32.exe

rundll32.exe c:\programdata\Documents.tmp,EnterDll

Network

N/A

Files

\??\c:\programdata\Documents.tmp

MD5 d7e7cf2ed643c84f35da54f6abbc8409
SHA1 4eaff70353abf1a9d1caf840d7a23c3f72fc5bb6
SHA256 4374f12287c158cc6e9421640b459455307e471711cc41f5666a1cbc553a3eb3
SHA512 cdf21fdcece645df88392bb9a0a865cb6ff5180d25bdeffab3a781c58612c84e0b2de1cbca8dacbfd307e3afcaf1fb5f60527f572c6b6098a43defc142799b21

memory/2608-41-0x0000000000110000-0x0000000000133000-memory.dmp

memory/2608-43-0x0000000180000000-0x000000018002A000-memory.dmp

memory/2608-44-0x0000000180000000-0x000000018002A000-memory.dmp

memory/2608-45-0x0000000180000000-0x000000018002A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-11 12:37

Reported

2024-04-11 12:40

Platform

win10v2004-20240226-en

Max time kernel

147s

Max time network

152s

Command Line

cmd /c C:\Users\Admin\AppData\Local\Temp\Documents.lnk

Signatures

Bazar Loader

loader dropper bazarloader

Bazar/Team9 Loader payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\system32\rundll32.exe N/A
N/A N/A C:\Windows\system32\rundll32.exe N/A
N/A N/A C:\Windows\system32\rundll32.exe N/A
N/A N/A C:\Windows\system32\rundll32.exe N/A
N/A N/A C:\Windows\system32\rundll32.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation C:\Windows\system32\cmd.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\system32\rundll32.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3448 wrote to memory of 2052 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\cmd.exe
PID 3448 wrote to memory of 2052 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\cmd.exe
PID 2052 wrote to memory of 2040 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\xcopy.exe
PID 2052 wrote to memory of 2040 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\xcopy.exe
PID 2052 wrote to memory of 2148 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\rundll32.exe
PID 2052 wrote to memory of 2148 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\rundll32.exe

Processes

C:\Windows\system32\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\Documents.lnk

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C xcopy /H Documents.tmp c:\programdata && start rundll32.exe c:\programdata\Documents.tmp,EnterDll && del Documents.lnk && del Documents.tmp && mkdir Documents && exit

C:\Windows\system32\xcopy.exe

xcopy /H Documents.tmp c:\programdata

C:\Windows\system32\rundll32.exe

rundll32.exe c:\programdata\Documents.tmp,EnterDll

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 159.113.53.23.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
DE 207.154.232.124:443 tcp
DE 165.232.66.86:443 tcp
DE 165.232.66.86:443 tcp
DE 165.232.66.86:443 tcp
DE 46.101.243.72:443 tcp
US 8.8.8.8:53 86.66.232.165.in-addr.arpa udp
US 8.8.8.8:53 3.173.189.20.in-addr.arpa udp

Files

\??\c:\programdata\Documents.tmp

MD5 d7e7cf2ed643c84f35da54f6abbc8409
SHA1 4eaff70353abf1a9d1caf840d7a23c3f72fc5bb6
SHA256 4374f12287c158cc6e9421640b459455307e471711cc41f5666a1cbc553a3eb3
SHA512 cdf21fdcece645df88392bb9a0a865cb6ff5180d25bdeffab3a781c58612c84e0b2de1cbca8dacbfd307e3afcaf1fb5f60527f572c6b6098a43defc142799b21

memory/2148-5-0x0000000180000000-0x000000018002A000-memory.dmp

memory/2148-6-0x0000000180000000-0x000000018002A000-memory.dmp

memory/2148-7-0x0000000180000000-0x000000018002A000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-04-11 12:37

Reported

2024-04-11 12:40

Platform

win7-20240221-en

Max time kernel

119s

Max time network

127s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\Documents.dll,#1

Signatures

Bazar Loader

loader dropper bazarloader

Bazar/Team9 Loader payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\Documents.dll,#1

Network

N/A

Files

memory/2212-0-0x0000000000410000-0x0000000000433000-memory.dmp

memory/2212-2-0x0000000180000000-0x000000018002A000-memory.dmp

memory/2212-3-0x0000000180000000-0x000000018002A000-memory.dmp

memory/2212-4-0x0000000180000000-0x000000018002A000-memory.dmp

Analysis: behavioral4

Detonation Overview

Submitted

2024-04-11 12:37

Reported

2024-04-11 12:40

Platform

win10v2004-20240226-en

Max time kernel

137s

Max time network

161s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\Documents.dll,#1

Signatures

Bazar Loader

loader dropper bazarloader

Bazar/Team9 Loader payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\system32\rundll32.exe N/A
N/A N/A C:\Windows\system32\rundll32.exe N/A
N/A N/A C:\Windows\system32\rundll32.exe N/A
N/A N/A C:\Windows\system32\rundll32.exe N/A
N/A N/A C:\Windows\system32\rundll32.exe N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\Documents.dll,#1

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1416 --field-trial-handle=2228,i,521073434451423547,2311651514500527526,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 20.231.121.79:80 tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 13.107.246.64:443 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 17.143.109.104.in-addr.arpa udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
GB 142.250.178.10:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 10.178.250.142.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
DE 207.154.232.124:443 tcp
DE 165.232.66.86:443 tcp
DE 165.232.66.86:443 tcp
DE 165.232.66.86:443 tcp
DE 46.101.243.72:443 tcp
US 8.8.8.8:53 86.66.232.165.in-addr.arpa udp

Files

memory/2984-0-0x0000000180000000-0x000000018002A000-memory.dmp

memory/2984-1-0x0000000180000000-0x000000018002A000-memory.dmp

memory/2984-2-0x0000000180000000-0x000000018002A000-memory.dmp