gozi_ifsb | dff28a4e03d3df0f6a7d39a77dd7d6243bdc9117b0b0da3b280447184856f4df

General

Target

9fcf3ab8703045032737668793f5563b.dll
Size

937KB
MD5

9fcf3ab8703045032737668793f5563b
SHA1

8d4db3886f332122eb430b04419d0befd0833107
SHA256

dff28a4e03d3df0f6a7d39a77dd7d6243bdc9117b0b0da3b280447184856f4df
SHA512

309cda81815d9c70555b978a4ba65e751f51df8b72f4352b9de37f20be55769321c34693f6c52598cae4cc8477ed6c07bd66ef030fa78202cbe19279416b3953

Score

10^/10

gozi_ifsb 4500 banker trojan

Malware Config

Extracted

Family

gozi_ifsb

Botnet

4500

C2

app3.maintorna.com

chat.billionady.com

app5.folion.xyz

wer.defone.click

Attributes

build
250188
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

Modifies Internet Explorer settings 1 TTPs 12 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{D43AE50B-BBD0-11EB-A11C-F29CEA8FB389} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

3888 iexplore.exe
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

3888 iexplore.exe
3888 iexplore.exe
200 IEXPLORE.EXE
200 IEXPLORE.EXE

pid	process
3888	iexplore.exe

pid	process
3888	iexplore.exe
3888	iexplore.exe
200	IEXPLORE.EXE
200	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

rundll32.exerundll32.exeiexplore.exe

description	pid	process	target process
PID 3172 wrote to memory of 748	3172	rundll32.exe	rundll32.exe
PID 3172 wrote to memory of 748	3172	rundll32.exe	rundll32.exe
PID 3172 wrote to memory of 748	3172	rundll32.exe	rundll32.exe
PID 748 wrote to memory of 188	748	rundll32.exe	cmd.exe
PID 748 wrote to memory of 188	748	rundll32.exe	cmd.exe
PID 748 wrote to memory of 188	748	rundll32.exe	cmd.exe
PID 748 wrote to memory of 1192	748	rundll32.exe	cmd.exe
PID 748 wrote to memory of 1192	748	rundll32.exe	cmd.exe
PID 748 wrote to memory of 1192	748	rundll32.exe	cmd.exe
PID 3888 wrote to memory of 200	3888	iexplore.exe	IEXPLORE.EXE
PID 3888 wrote to memory of 200	3888	iexplore.exe	IEXPLORE.EXE
PID 3888 wrote to memory of 200	3888	iexplore.exe	IEXPLORE.EXE

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9fcf3ab8703045032737668793f5563b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3172

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9fcf3ab8703045032737668793f5563b.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:748

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c cd Island
3⤵
PID:188

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c cd Matter m
3⤵
PID:1192

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:3888

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3888 CREDAT:82945 /prefetch:2
2⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:200

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

memory/188-115-0x0000000000000000-mapping.dmp

Download
memory/200-122-0x0000000000000000-mapping.dmp

Download
memory/748-114-0x0000000000000000-mapping.dmp

Download
memory/748-117-0x0000000073B10000-0x0000000073B1E000-memory.dmp

Filesize
56KB

Download
memory/748-118-0x0000000073B10000-0x0000000073C14000-memory.dmp

Filesize
1.0MB

Download
memory/748-119-0x0000000000950000-0x0000000000A9A000-memory.dmp

Filesize
1.3MB

Download
memory/1192-116-0x0000000000000000-mapping.dmp

Download
memory/3888-121-0x00007FFD69AA0000-0x00007FFD69B0B000-memory.dmp

Filesize
428KB

Download

Analysis

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