470edf1ae3f53c3fe72c5e8c12ce896596a4ade9db83961d4d242fd00eef33b1

General

Target

77bc3beca617a3269226a47c2c084bb6_JaffaCakes118.exe
Size

188KB
MD5

77bc3beca617a3269226a47c2c084bb6
SHA1

d9222276597a188d0613f9a4eb7aee416da5487c
SHA256

470edf1ae3f53c3fe72c5e8c12ce896596a4ade9db83961d4d242fd00eef33b1
SHA512

8e567bb5651e5b2e7be1d49822f1e3030ce9d93ef4730f986c469f3b5861d0cf943a5400dde00b347f159e460f03478a1fe13e885f0250a45cbe215bc2db539c
SSDEEP

3072:A1gObv+5KmvMYURXYUGbMLwEp7M/3jqnaku0/3WEkkbr3oepDwqUDy5j:A1jawGUHXZMPjqabO3FbrYoDVGy

Score

6^/10

adware discovery stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\	77bc3beca617a3269226a47c2c084bb6_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\	77bc3beca617a3269226a47c2c084bb6_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\eawi2600.dll	77bc3beca617a3269226a47c2c084bb6_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	77bc3beca617a3269226a47c2c084bb6_JaffaCakes118.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ZimboNews.clsZimboNews\Clsid	77bc3beca617a3269226a47c2c084bb6_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ZimboNews.clsZimboNews	77bc3beca617a3269226a47c2c084bb6_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3032	77bc3beca617a3269226a47c2c084bb6_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3032 wrote to memory of 2056	3032	77bc3beca617a3269226a47c2c084bb6_JaffaCakes118.exe	30
PID 3032 wrote to memory of 2056	3032	77bc3beca617a3269226a47c2c084bb6_JaffaCakes118.exe	30
PID 3032 wrote to memory of 2056	3032	77bc3beca617a3269226a47c2c084bb6_JaffaCakes118.exe	30
PID 3032 wrote to memory of 2056	3032	77bc3beca617a3269226a47c2c084bb6_JaffaCakes118.exe	30
PID 2056 wrote to memory of 2408	2056	cmd.exe	32
PID 2056 wrote to memory of 2408	2056	cmd.exe	32
PID 2056 wrote to memory of 2408	2056	cmd.exe	32
PID 2056 wrote to memory of 2408	2056	cmd.exe	32
PID 3032 wrote to memory of 2972	3032	77bc3beca617a3269226a47c2c084bb6_JaffaCakes118.exe	35
PID 3032 wrote to memory of 2972	3032	77bc3beca617a3269226a47c2c084bb6_JaffaCakes118.exe	35
PID 3032 wrote to memory of 2972	3032	77bc3beca617a3269226a47c2c084bb6_JaffaCakes118.exe	35
PID 3032 wrote to memory of 2972	3032	77bc3beca617a3269226a47c2c084bb6_JaffaCakes118.exe	35
PID 3032 wrote to memory of 2972	3032	77bc3beca617a3269226a47c2c084bb6_JaffaCakes118.exe	35
PID 3032 wrote to memory of 2972	3032	77bc3beca617a3269226a47c2c084bb6_JaffaCakes118.exe	35
PID 3032 wrote to memory of 2972	3032	77bc3beca617a3269226a47c2c084bb6_JaffaCakes118.exe	35

C:\Users\Admin\AppData\Local\Temp\77bc3beca617a3269226a47c2c084bb6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\77bc3beca617a3269226a47c2c084bb6_JaffaCakes118.exe"
1⤵
- Installs/modifies Browser Helper Object
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\System32\cmd.exe /k %windir%\System32\reg.exe ADDHKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System/v EnableLUA /t REG_DWORD /d 0 /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2056
- - C:\Windows\SysWOW64\reg.exe
    C:\Windows\System32\reg.exe ADDHKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System/v EnableLUA /t REG_DWORD /d 0 /f
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2408
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32.exe /s C:\Windows\eawi2600.dll
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\eawi2600.dll

Filesize
5KB

MD5
a6cacb5804414ab881651ac0a592181d

SHA1
7e588633f7247bfd3469d8ac089381cfa94e2bcc

SHA256
1c6ab620c452b7264e9875274be8a17927ca05b867f7ce9a06dacc3ef2af190d

SHA512
3f6ed5e1b72da9f402682237fc664e99202f1af1dbee8b2f03328d62381d7701031ad7e92c101b541875a0e8b698e2a2ed9bed964a78401b94cf734b8e530bf9

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Analysis

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