gozi_ifsb | 4d49ae7c236083099228b2bb42288560a7110face080ea63e20fe25c99840744

General

Target

fd18a646bd32938babf115e7b5eacb30e39630779520f6df26924b7c6513995c.bin.doc
Size

45KB
MD5

cf6d17f7df9d3702c297b9f54bb5c571
SHA1

d554fe56cf733ccb72cf3581b53ec2fcb60106a8
SHA256

fd18a646bd32938babf115e7b5eacb30e39630779520f6df26924b7c6513995c
SHA512

f7f069e30042ac9e4334d0279517bd7b24ba982d38a216405ad58762888c6bd9037eaa8ce69333b1fd7638eb77f6b66df45bcad4d407361e22001b5f64045534

Score

10^/10

gozi_ifsb 6000 banker trojan

Malware Config

Extracted

Family

gozi_ifsb

Botnet

6000

C2

authd.feronok.com

app.bighomegl.at

Attributes

build
250204
exe_type
loader
server_id
580

rsa_pubkey.base64

serpent.plain

Signatures

Gozi, Gozi IFSB
Gozi ISFB is a well-known and widely distributed banking trojan.
banker trojan gozi_ifsb

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

regsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE is not expected to spawn this process	1940	1884	regsvr32.exe	WINWORD.EXE

Downloads MZ/PE file
Loads dropped DLL 1 IoCs

Processes:

regsvr32.exe

pid process

1940 regsvr32.exe
Drops file in Windows directory 1 IoCs

Processes:

WINWORD.EXE

description ioc process

File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE
Office loads VBA resources, possible macro or embedded object present

pid	process
1940	regsvr32.exe

description	ioc	process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

Modifies Internet Explorer settings 1 TTPs 33 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeWINWORD.EXEIEXPLORE.EXE

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{1F843A41-D03F-11EB-BF60-7A40C1B3078F} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

2004 WINWORD.EXE
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

1608 iexplore.exe

pid	process
1608	iexplore.exe

Suspicious use of SetWindowsHookEx 22 IoCs

Processes:

WINWORD.EXEWINWORD.EXEiexplore.exeIEXPLORE.EXE

pid	process
2004	WINWORD.EXE
2004	WINWORD.EXE
2004	WINWORD.EXE
2004	WINWORD.EXE
2004	WINWORD.EXE
2004	WINWORD.EXE
2004	WINWORD.EXE
2004	WINWORD.EXE
2004	WINWORD.EXE
2004	WINWORD.EXE
2004	WINWORD.EXE
2004	WINWORD.EXE
2004	WINWORD.EXE
2004	WINWORD.EXE
2004	WINWORD.EXE
2004	WINWORD.EXE
1884	WINWORD.EXE
1884	WINWORD.EXE
1608	iexplore.exe
1608	iexplore.exe
1076	IEXPLORE.EXE
1076	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

WINWORD.EXEWINWORD.EXEiexplore.exe

description	pid	process	target process
PID 1884 wrote to memory of 1940	1884	WINWORD.EXE	regsvr32.exe
PID 1884 wrote to memory of 1940	1884	WINWORD.EXE	regsvr32.exe
PID 1884 wrote to memory of 1940	1884	WINWORD.EXE	regsvr32.exe
PID 1884 wrote to memory of 1940	1884	WINWORD.EXE	regsvr32.exe
PID 1884 wrote to memory of 1940	1884	WINWORD.EXE	regsvr32.exe
PID 1884 wrote to memory of 1940	1884	WINWORD.EXE	regsvr32.exe
PID 1884 wrote to memory of 1940	1884	WINWORD.EXE	regsvr32.exe
PID 2004 wrote to memory of 276	2004	WINWORD.EXE	splwow64.exe
PID 2004 wrote to memory of 276	2004	WINWORD.EXE	splwow64.exe
PID 2004 wrote to memory of 276	2004	WINWORD.EXE	splwow64.exe
PID 2004 wrote to memory of 276	2004	WINWORD.EXE	splwow64.exe
PID 1608 wrote to memory of 1076	1608	iexplore.exe	IEXPLORE.EXE
PID 1608 wrote to memory of 1076	1608	iexplore.exe	IEXPLORE.EXE
PID 1608 wrote to memory of 1076	1608	iexplore.exe	IEXPLORE.EXE
PID 1608 wrote to memory of 1076	1608	iexplore.exe	IEXPLORE.EXE

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\fd18a646bd32938babf115e7b5eacb30e39630779520f6df26924b7c6513995c.bin.doc"
1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2004

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:276

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /Automation -Embedding
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1884

C:\Windows\SysWOW64\regsvr32.exe
regsvr32 c:\programdata\constException.jpg
2⤵
- Process spawned unexpected child process
- Loads dropped DLL
PID:1940

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1608

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1608 CREDAT:275457 /prefetch:2
2⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1076

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Office\MSO1033.acl
MD5
83201d20b08c9bad0e9e964388b1cb11

SHA1
2d3a5ff7db2250c32a3e842ee78653fc36979f2c

SHA256
fd1f02669dcaa3230ffbf20d2b4fc164a18ea3e0d644e6a270ccffdec39505f3

SHA512
8ee2525e9cf9b9cd82bdf6080f1505b132a2601ea942fd59586c5c7276bbf0e660e58d2a9cab345adb23b04d6f7ef314fa3d8a64f09bee0b75eb774e2538b03d

Download Submit
\??\c:\programdata\constException.jpg
MD5
e5298c1b6b1895dd0854ea94a5c53179

SHA1
714d24b47b89f5e66f077078a77337468bff0a55

SHA256
6dfb5864e069974b512e70f844fb51f21aaf3b69a3a1d686365dc46d00056e13

SHA512
f41c76273ff764ed14a7635682e98995caf6b7da0fb61868e45462ffeeae665012fbed9f77483ceef82a58d812d1482a837f4c36d1bbc3d985322e57b28f847a

Download Submit
\ProgramData\constException.jpg
MD5
e5298c1b6b1895dd0854ea94a5c53179

SHA1
714d24b47b89f5e66f077078a77337468bff0a55

SHA256
6dfb5864e069974b512e70f844fb51f21aaf3b69a3a1d686365dc46d00056e13

SHA512
f41c76273ff764ed14a7635682e98995caf6b7da0fb61868e45462ffeeae665012fbed9f77483ceef82a58d812d1482a837f4c36d1bbc3d985322e57b28f847a

Download Submit
memory/276-74-0x000007FEFC411000-0x000007FEFC413000-memory.dmp

Filesize
8KB

Download
memory/276-73-0x0000000000000000-mapping.dmp

Download
memory/1076-78-0x0000000000000000-mapping.dmp

Download
memory/1884-72-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1940-68-0x00000000765F1000-0x00000000765F3000-memory.dmp

Filesize
8KB

Download
memory/1940-71-0x00000000001E0000-0x0000000000270000-memory.dmp

Filesize
576KB

Download
memory/1940-67-0x0000000000000000-mapping.dmp

Download
memory/1940-75-0x00000000001E0000-0x00000000001ED000-memory.dmp

Filesize
52KB

Download
memory/1940-76-0x0000000000190000-0x0000000000191000-memory.dmp

Filesize
4KB

Download
memory/2004-60-0x0000000072FC1000-0x0000000072FC4000-memory.dmp

Filesize
12KB

Download
memory/2004-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2004-61-0x0000000070A41000-0x0000000070A43000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads