gozi_ifsb | e1c8e34791daee490ba154c10dddf0d43d4cc6910fb08debbd5c722e722ea551

Resubmissions

24-08-2021 15:27

210824-gr81wz5pan 10

21-06-2021 13:09

210621-c2wlrsx18e 10

Analysis

max time kernel
1785s
max time network
1786s
platform
windows10_x64
resource
win10v20210410
submitted
24-08-2021 15:27

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Report Analysis Logs

General

Target

focy1.dll
Size

306KB
MD5

81a57502787fd832d141625494bc6e61
SHA1

73025e06eb644652e5f43d050663b041f687e53f
SHA256

e1c8e34791daee490ba154c10dddf0d43d4cc6910fb08debbd5c722e722ea551
SHA512

aecdf00d939762880c15de0f9377d1a3d4dcbe5f9bbd8d272003bfccc38f7314c862c45e0e387ef7d3ac13bb289136f39b32b7869ee22dd1175577d939c0dada

Score

10^/10

gozi_ifsb 6000 banker trojan

Malware Config

Extracted

Family

gozi_ifsb

Botnet

6000

authd.feronok.com

app.bighomegl.at

Attributes

build
250204
exe_type
loader
server_id
580

rsa_pubkey.plain

aes.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 64 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 6084c0e0fd98d701	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30906621"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000d70786d3b5105b4aa59f22b8ec9d5a130000000002000000000010660000000100002000000098d298ef2c7f10ae6ce6cf87765dcdb0e6d777ce1b35ce5b24389f566ca067b9000000000e8000000002000020000000f74e7c394953fb3eb45738aeda08e31bf16d3adb404e7b1bd5daca41fb6ea980200000009d0b91d38a7e2851236fd222378bb95d7f110b221c7a3fce5366365fc877340b40000000f97b0c7a2b8bc065b9a3eabc9c711410ba4c24313eaeba113d1ca516f09c44f4973ea309c8c80227619590c294e073e09038fc4b82965521a0c6c12420986457	iexplore.exe
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\Recovery\AdminActive\{3190A314-04F1-11EC-A11C-7280A1B46CD1} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{3E8043BC-04F1-11EC-A11C-7280A1B46CD1} = "0"	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\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	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\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
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 (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000d70786d3b5105b4aa59f22b8ec9d5a1300000000020000000000106600000001000020000000327dea3984f74be285db65b458d3374d0f247f550ba518bad25aef2df6bad119000000000e8000000002000020000000c0b83e9e61efb0c23a257ba243d525512c5d4ed4ccf106ea4bf04ee96f24bc6120000000605a4c965f2f3b9e3c1480582a34b6e5d51dd37ebdefcc2d675caaba3189d8a04000000045de867277d6a59e4a255434c547404f06eac29e8a1a2a4684c8594a671254d800f1b56ebc81ff55f5fbfb0ae5104aa827cfd3b993251e5593055aee12d97cb1	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 70a14f01fe98d701	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main	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
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 809db4e0fd98d701	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 (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000d70786d3b5105b4aa59f22b8ec9d5a1300000000020000000000106600000001000020000000d63aeba568db76a4585cfecbefa14c163736017e59a9310236426e45d5c790b0000000000e80000000020000200000007cccb81ab83bf40854b626e93d62071c48413e114e841c4e809d589a997abcbe20000000c159bd7d45669601516dec7abfd213a235aba0625de54385e53ff5ad6f367a6d40000000c3fab01a29fdedae1a1389c23f9a8ac7a7ec39cc4ac74beff4acecfe264a72e2532579817cf23fbe7a4026a2578de462ee90c37d0a6165f99d0f2a8f840739b6	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000d70786d3b5105b4aa59f22b8ec9d5a1300000000020000000000106600000001000020000000b377f184af9ef14290eddbaf3b7bceb57f2833e5676754467b5696b3f697e323000000000e80000000020000200000003fbef769012474cb2f3fb7e36188f22146ea412690af6633d13a12033fbd6233200000003ab0441872b99d8600c56f0039278c83e0449e50a18966c7998420ace1030575400000002fcf8a24db0827cdd07a21de41bfa6ec6bdf7fadd651a4463b157be1d72294a5672dfe8b64a20e78ab0756a7eb1adcc5ee0570e2b8dcd0e028a7ca3913e989cb	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\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	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
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 906670e7fd98d701	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
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30906621"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
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\VersionManager\LastCheckForUpdateLowDateTime = "3761342799"	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
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
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\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{0BA69DD5-04F1-11EC-A11C-7280A1B46CD1} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000d70786d3b5105b4aa59f22b8ec9d5a130000000002000000000010660000000100002000000099fb36b60f893095d5b4ba49b590ef2a36cf832c862db3dc079ce877bffd6c95000000000e80000000020000200000007debaa0c3aca1cfab59ffb261eaeecad0abe40d86780b8455799a25d3dbcb3352000000036ed42f8ab596431712a434c33b357754d31529549a2316672ea57718159b55840000000cf35116226d224a3edf4634fca351f616991c2852ca1f95f6d31f45022699880ffa3ae646c5730d8a744a2e6ed88f6ed55d324b02ca94c4168fe2c0915bc546c	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{24A5C3C3-04F1-11EC-A11C-7280A1B46CD1} = "0"	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 (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = f02f67f4fd98d701	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3761342799"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	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
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	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\MINIE\TabBandWidth = "500"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2416	iexplore.exe
1432	iexplore.exe
3488	iexplore.exe
1184	iexplore.exe

Suspicious use of SetWindowsHookEx 16 IoCs

pid	Process
2416	iexplore.exe
2416	iexplore.exe
2840	IEXPLORE.EXE
2840	IEXPLORE.EXE
1432	iexplore.exe
1432	iexplore.exe
3332	IEXPLORE.EXE
3332	IEXPLORE.EXE
3488	iexplore.exe
3488	iexplore.exe
1936	IEXPLORE.EXE
1936	IEXPLORE.EXE
1184	iexplore.exe
1184	iexplore.exe
1960	IEXPLORE.EXE
1960	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3908 wrote to memory of 3952	3908	rundll32.exe	71
PID 3908 wrote to memory of 3952	3908	rundll32.exe	71
PID 3908 wrote to memory of 3952	3908	rundll32.exe	71
PID 2416 wrote to memory of 2840	2416	iexplore.exe	82
PID 2416 wrote to memory of 2840	2416	iexplore.exe	82
PID 2416 wrote to memory of 2840	2416	iexplore.exe	82
PID 1432 wrote to memory of 3332	1432	iexplore.exe	84
PID 1432 wrote to memory of 3332	1432	iexplore.exe	84
PID 1432 wrote to memory of 3332	1432	iexplore.exe	84
PID 3488 wrote to memory of 1936	3488	iexplore.exe	86
PID 3488 wrote to memory of 1936	3488	iexplore.exe	86
PID 3488 wrote to memory of 1936	3488	iexplore.exe	86
PID 1184 wrote to memory of 1960	1184	iexplore.exe	88
PID 1184 wrote to memory of 1960	1184	iexplore.exe	88
PID 1184 wrote to memory of 1960	1184	iexplore.exe	88

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\focy1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3908
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\focy1.dll,#1
  2⤵
  PID:3952

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:2416
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2416 CREDAT:82945 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:2840

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:1432
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1432 CREDAT:82945 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:3332

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:3488
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3488 CREDAT:82945 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:1936

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:1184
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1184 CREDAT:82945 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:1960

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1184-125-0x00007FF85D480000-0x00007FF85D4EB000-memory.dmp

Filesize
428KB

Download
memory/1432-121-0x00007FF85D480000-0x00007FF85D4EB000-memory.dmp

Filesize
428KB

Download
memory/2416-119-0x00007FF85D480000-0x00007FF85D4EB000-memory.dmp

Filesize
428KB

Download
memory/3488-123-0x00007FF85D480000-0x00007FF85D4EB000-memory.dmp

Filesize
428KB

Download
memory/3952-116-0x0000000073AB0000-0x0000000073B9A000-memory.dmp

Filesize
936KB

Download
memory/3952-115-0x0000000073AB0000-0x0000000073ABD000-memory.dmp

Filesize
52KB

Download
memory/3952-117-0x0000000000A40000-0x0000000000A41000-memory.dmp

Filesize
4KB

Download