Malware Analysis Report

2024-09-22 22:19

Sample ID 240617-qnwy7ssfkd
Target b8d78a5940e0a07f61065451ccdc9918_JaffaCakes118
SHA256 77393439145b496c866f5b49cf324a73c15e8b7673b41911f46badc4b3ef302a
Tags
emotet epoch1 banker trojan
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 Overview

score
10/10

SHA256

77393439145b496c866f5b49cf324a73c15e8b7673b41911f46badc4b3ef302a

Threat Level: Known bad

The file b8d78a5940e0a07f61065451ccdc9918_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

emotet epoch1 banker trojan

Emotet

Drops file in System32 directory

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Modifies data under HKEY_USERS

Suspicious behavior: RenamesItself

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-17 13:24

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-17 13:24

Reported

2024-06-17 13:27

Platform

win7-20240419-en

Max time kernel

138s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b8d78a5940e0a07f61065451ccdc9918_JaffaCakes118.exe"

Signatures

Emotet

trojan banker emotet

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat C:\Windows\SysWOW64\tcgspecial.exe N/A

Enumerates physical storage devices

Modifies data under HKEY_USERS

Description Indicator Process Target
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad C:\Windows\SysWOW64\tcgspecial.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00e4000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\tcgspecial.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B3CD6B59-45B8-4EC6-BAF2-0C427CEEC5A6} C:\Windows\SysWOW64\tcgspecial.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9e-99-4c-c3-5e-ea\WpadDecisionTime = 4093edd3b9c0da01 C:\Windows\SysWOW64\tcgspecial.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\tcgspecial.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections C:\Windows\SysWOW64\tcgspecial.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9e-99-4c-c3-5e-ea\WpadDecision = "0" C:\Windows\SysWOW64\tcgspecial.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B3CD6B59-45B8-4EC6-BAF2-0C427CEEC5A6}\WpadDecision = "0" C:\Windows\SysWOW64\tcgspecial.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9e-99-4c-c3-5e-ea C:\Windows\SysWOW64\tcgspecial.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\tcgspecial.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" C:\Windows\SysWOW64\tcgspecial.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\tcgspecial.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B3CD6B59-45B8-4EC6-BAF2-0C427CEEC5A6}\WpadDecisionTime = 4093edd3b9c0da01 C:\Windows\SysWOW64\tcgspecial.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\tcgspecial.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\tcgspecial.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B3CD6B59-45B8-4EC6-BAF2-0C427CEEC5A6}\WpadDecisionReason = "1" C:\Windows\SysWOW64\tcgspecial.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B3CD6B59-45B8-4EC6-BAF2-0C427CEEC5A6}\WpadNetworkName = "Network 3" C:\Windows\SysWOW64\tcgspecial.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B3CD6B59-45B8-4EC6-BAF2-0C427CEEC5A6}\9e-99-4c-c3-5e-ea C:\Windows\SysWOW64\tcgspecial.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9e-99-4c-c3-5e-ea\WpadDecisionReason = "1" C:\Windows\SysWOW64\tcgspecial.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\tcgspecial.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\tcgspecial.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\tcgspecial.exe N/A
N/A N/A C:\Windows\SysWOW64\tcgspecial.exe N/A
N/A N/A C:\Windows\SysWOW64\tcgspecial.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b8d78a5940e0a07f61065451ccdc9918_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b8d78a5940e0a07f61065451ccdc9918_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b8d78a5940e0a07f61065451ccdc9918_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\b8d78a5940e0a07f61065451ccdc9918_JaffaCakes118.exe

--756fc1e9

C:\Windows\SysWOW64\tcgspecial.exe

"C:\Windows\SysWOW64\tcgspecial.exe"

C:\Windows\SysWOW64\tcgspecial.exe

--f054b5d3

Network

Country Destination Domain Proto
US 63.248.198.8:80 tcp
US 63.248.198.8:80 tcp
BR 189.19.81.181:443 tcp
BR 189.19.81.181:443 tcp
BG 130.204.247.253:80 tcp
BG 130.204.247.253:80 tcp

Files

memory/2288-5-0x0000000000350000-0x0000000000361000-memory.dmp

memory/2288-0-0x0000000000380000-0x0000000000397000-memory.dmp

memory/2920-6-0x0000000000260000-0x0000000000277000-memory.dmp

memory/2140-11-0x00000000003A0000-0x00000000003B7000-memory.dmp

memory/2920-16-0x0000000000400000-0x00000000004C1000-memory.dmp

memory/2724-17-0x00000000003E0000-0x00000000003F7000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-17 13:24

Reported

2024-06-17 13:27

Platform

win10v2004-20240226-en

Max time kernel

143s

Max time network

157s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b8d78a5940e0a07f61065451ccdc9918_JaffaCakes118.exe"

Signatures

Emotet

trojan banker emotet

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 C:\Windows\SysWOW64\inboxwrap.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE C:\Windows\SysWOW64\inboxwrap.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\SysWOW64\inboxwrap.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Windows\SysWOW64\inboxwrap.exe N/A

Enumerates physical storage devices

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\inboxwrap.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\inboxwrap.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\inboxwrap.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b8d78a5940e0a07f61065451ccdc9918_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b8d78a5940e0a07f61065451ccdc9918_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b8d78a5940e0a07f61065451ccdc9918_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\b8d78a5940e0a07f61065451ccdc9918_JaffaCakes118.exe

--756fc1e9

C:\Windows\SysWOW64\inboxwrap.exe

"C:\Windows\SysWOW64\inboxwrap.exe"

C:\Windows\SysWOW64\inboxwrap.exe

--9b88cce6

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=4112 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
GB 96.16.110.114:80 tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 63.248.198.8:80 tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 13.107.253.64:443 tcp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 159.113.53.23.in-addr.arpa udp
BR 189.19.81.181:443 tcp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
BG 130.204.247.253:80 tcp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
DE 142.250.186.42:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 42.186.250.142.in-addr.arpa udp
US 96.126.121.64:443 tcp
US 104.236.137.72:8080 tcp
GB 85.234.143.94:8080 tcp
US 8.8.8.8:53 90.16.208.104.in-addr.arpa udp

Files

memory/4412-0-0x0000000002270000-0x0000000002287000-memory.dmp

memory/4412-5-0x0000000002250000-0x0000000002261000-memory.dmp

memory/2828-6-0x00000000021A0000-0x00000000021B7000-memory.dmp

memory/4464-11-0x0000000000E70000-0x0000000000E87000-memory.dmp

memory/752-16-0x0000000000DF0000-0x0000000000E07000-memory.dmp

memory/2828-21-0x0000000000400000-0x00000000004C1000-memory.dmp