gozi_ifsb | f2147511fb2f25676365c0fa04756007d8311b9a730d618bf344e5946fd4395e

General

Target

peppercorn.swift.dll
Size

531KB
MD5

f1e7c116fad465169694a6dd801bcc1b
SHA1

8b6a98055791f71c8bbd5379374ba85190fdb942
SHA256

7b41dc2e287a4c05053413b9b14c8af713b68d01f5f35ac4aebf4d208337e7bf
SHA512

8d2e22eef14475d83fb86e93956d9410c7b4ee498efba6b3d8e456f7dabd3839d86b1e8972cc44f401600a69af8d0fe457827fd22fba950e7df24a996ae715d5

Score

10^/10

gozi_ifsb 3300 banker trojan

Malware Config

Extracted

Family

gozi_ifsb

Botnet

3300

C2

api10.laptok.at/api1

Attributes

build
250155
dga_base_url
constitution.org/usdeclar.txt
dga_crc
0x4eb7d2ca
dga_season
10
dga_tlds
com

ru

org
exe_type
loader
server_id
730

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 56 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeiexplore.exeiexplore.exeIEXPLORE.EXEIEXPLORE.EXEIEXPLORE.EXE

description	ioc	process
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\VersionManager	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	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30888919"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000ad98e1c4c5c1f64cbad3c833b8884b27000000000200000000001066000000010000200000009d81327f331165078cda051b70701e5792313165280a004a6ada1a033692cf2e000000000e8000000002000020000000316e46aee1172a06c8fd8d2d68d9b8c8f3831b2765b40dd49b8987ac48930e7520000000db8742d6f8fd72820dee5e15fc8e21e052dceccf9eb9f42e6619e154b54f7bd240000000a44bfc3e8fc3c8bd6be061d9de1d4f4d395ea9c09101477e6494d6086731aef695b996b7155713b661c33e97242e285259061b74ee0c53280abdb8510165c364	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	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\MINIE\TabBandWidth = "500"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	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\{F05CF7BD-BFCA-11EB-A11C-7E556571BED2} = "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 (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\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 = 3020e3ccd753d701	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 (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\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000ad98e1c4c5c1f64cbad3c833b8884b2700000000020000000000106600000001000020000000569a2e752d2f073236716059d794aff86ef0364ceb3f20700cda97a88603f2e4000000000e8000000002000020000000ebc2d4987431383577984b228475dbd736fddc8d85054df9a40705c6598f679620000000d19bfaf6164791f0fdc0ccab838520961837bdc5e5f89a421bf7289a802eb34640000000f86ab95a6e3323d62cf1bba3690b30cbe4e386598765fef1c18855ef6c99f7270e58471fd37f1e6d36a7ecc2349767366a373a3731fb491fea24e04546e4234d	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{0A1F9FFD-BFCB-11EB-A11C-7E556571BED2} = "0"	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\MINIE	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30888919"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 705d08c6d753d701	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\Recovery\PendingRecovery	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 40fc5cdad753d701	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\MINIE	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3303219698"	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
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
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 803101c6d753d701	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\PendingRecovery	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\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000ad98e1c4c5c1f64cbad3c833b8884b27000000000200000000001066000000010000200000006b7e450fcc3af42125646784e5d541108ab8ece0c2329467bacce2e6b94d9f4a000000000e800000000200002000000059d1ba4f4bee97798468987880d961ff23a125bdf98680a0d59f83d99f151900200000006750672fae75e75c2da93b5e207a2d08b91fa2052a57e782d95a3ef9f7a9e78140000000295c3a71fe1e98353ce31b6f4cde57fdfbc02be2463b7c03a08eff5208b4025515b79a1294965d9b689ca5f74bc4cfca914222c7f5045b5281e310c88b806482	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\AdminActive	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\TabbedBrowsing\NewTabPage	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\TabbedBrowsing	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000ad98e1c4c5c1f64cbad3c833b8884b2700000000020000000000106600000001000020000000aa6271f33f6da0d09f1a65a07b1a53cc1142a475bfcabfb74927fcb4f17ac724000000000e800000000200002000000082f0a4ac3bc32a33b9c84bb8a17ba34096278a6292dddfff9f256f20ef658a9c2000000042d5a02d48b404867ba49bf70f8d2c3ef9dd496b7f3e257a43ce246ab8d0c7a44000000008eac114eb201d8855264f6b99ee24f8e65a5866afec5940543e8d22fcd3658fe2baa6781331bf93d235367e77bf2cb61584972611fef0dcbcf5a139cee6a899	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\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3303219698"	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\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{16FE92DA-BFCB-11EB-A11C-7E556571BED2} = "0"	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

Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

iexplore.exeiexplore.exeiexplore.exe

pid process

1436 iexplore.exe
2844 iexplore.exe
2180 iexplore.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

iexplore.exeIEXPLORE.EXEiexplore.exeIEXPLORE.EXEiexplore.exeIEXPLORE.EXE

pid	process
1436	iexplore.exe
1436	iexplore.exe
2636	IEXPLORE.EXE
2636	IEXPLORE.EXE
2844	iexplore.exe
2844	iexplore.exe
740	IEXPLORE.EXE
740	IEXPLORE.EXE
2180	iexplore.exe
2180	iexplore.exe
1960	IEXPLORE.EXE
1960	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

rundll32.exeiexplore.exeiexplore.exeiexplore.exe

description	pid	process	target process
PID 3944 wrote to memory of 2836	3944	rundll32.exe	rundll32.exe
PID 3944 wrote to memory of 2836	3944	rundll32.exe	rundll32.exe
PID 3944 wrote to memory of 2836	3944	rundll32.exe	rundll32.exe
PID 1436 wrote to memory of 2636	1436	iexplore.exe	IEXPLORE.EXE
PID 1436 wrote to memory of 2636	1436	iexplore.exe	IEXPLORE.EXE
PID 1436 wrote to memory of 2636	1436	iexplore.exe	IEXPLORE.EXE
PID 2844 wrote to memory of 740	2844	iexplore.exe	IEXPLORE.EXE
PID 2844 wrote to memory of 740	2844	iexplore.exe	IEXPLORE.EXE
PID 2844 wrote to memory of 740	2844	iexplore.exe	IEXPLORE.EXE
PID 2180 wrote to memory of 1960	2180	iexplore.exe	IEXPLORE.EXE
PID 2180 wrote to memory of 1960	2180	iexplore.exe	IEXPLORE.EXE
PID 2180 wrote to memory of 1960	2180	iexplore.exe	IEXPLORE.EXE

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\peppercorn.swift.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3944

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\peppercorn.swift.dll,#1
2⤵
PID:2836

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:1436

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1436 CREDAT:82945 /prefetch:2
2⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2636

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:2844

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2844 CREDAT:82945 /prefetch:2
2⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:740

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:2180

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2180 CREDAT:82945 /prefetch:2
2⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1960

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

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Downloads

memory/740-122-0x0000000000000000-mapping.dmp

Download
memory/1436-119-0x00007FF832810000-0x00007FF83287B000-memory.dmp

Filesize
428KB

Download
memory/1960-124-0x0000000000000000-mapping.dmp

Download
memory/2180-123-0x00007FF833C40000-0x00007FF833CAB000-memory.dmp

Filesize
428KB

Download
memory/2636-120-0x0000000000000000-mapping.dmp

Download
memory/2836-114-0x0000000000000000-mapping.dmp

Download
memory/2836-115-0x0000000004570000-0x0000000004652000-memory.dmp

Filesize
904KB

Download
memory/2836-117-0x0000000004571000-0x00000000045E9000-memory.dmp

Filesize
480KB

Download
memory/2836-116-0x0000000004570000-0x0000000004580000-memory.dmp

Filesize
64KB

Download
memory/2836-118-0x0000000000DD0000-0x0000000000DD1000-memory.dmp

Filesize
4KB

Download
memory/2844-121-0x00007FF832810000-0x00007FF83287B000-memory.dmp

Filesize
428KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads