gozi_ifsb | 80e3a54e37f5e83b8bdab98b2ca765baaecb72c303fe44bc85ab85e7ece76764

General

Target

80e3a54e37f5e83b8bdab98b2ca765baaecb72c303fe44bc85ab85e7ece76764.exe
Size

273KB
MD5

54cd7479c93e54ce8c9784b8b1a0392b
SHA1

c3e15e023c4ae835789b82befbe328ae137417ea
SHA256

80e3a54e37f5e83b8bdab98b2ca765baaecb72c303fe44bc85ab85e7ece76764
SHA512

cea67d7c1094b107a83c607196d9d4d16e0d7d6b7e5cdaa81d83e52422a9194203680d65b44c106c46a8e47dc6251fe292930e9fcc8b757b7d5242383286afbb

Score

10^/10

gozi_ifsb ursnif banker persistence spyware trojan upx

Malware Config

Extracted

Family

ursnif

Attributes

dga_base_url
dga_crc
0
dga_season
0
dga_tlds
dns_servers

Signatures

Gozi, Gozi IFSB
Gozi ISFB is a well-known and widely distributed banking trojan.
banker trojan gozi_ifsb
Ursnif, Dreambot
Ursnif is a variant of the Gozi IFSB with more capabilities.
banker trojan ursnif

Executes dropped EXE 1 IoCs

pid	Process
1928	chsbmifs.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x00040000000130cc-3.dat	upx
behavioral1/files/0x00040000000130cc-4.dat	upx
behavioral1/files/0x00040000000130cc-6.dat	upx

Deletes itself 1 IoCs

pid	Process
1928	chsbmifs.exe

Loads dropped DLL 1 IoCs

pid	Process
2004	cmd.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\getumf32 = "C:\\Users\\Admin\\AppData\\Roaming\\apssclnt\\chsbmifs.exe"	80e3a54e37f5e83b8bdab98b2ca765baaecb72c303fe44bc85ab85e7ece76764.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1928 set thread context of 1900	1928	chsbmifs.exe	30
PID 1900 set thread context of 1276	1900	svchost.exe	21

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1928	chsbmifs.exe
1276	Explorer.EXE

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1928	chsbmifs.exe
1900	svchost.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1276	Explorer.EXE
1276	Explorer.EXE
1276	Explorer.EXE
1276	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1276	Explorer.EXE
1276	Explorer.EXE
1276	Explorer.EXE
1276	Explorer.EXE

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1276	Explorer.EXE

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1588 wrote to memory of 1980	1588	80e3a54e37f5e83b8bdab98b2ca765baaecb72c303fe44bc85ab85e7ece76764.exe	26
PID 1588 wrote to memory of 1980	1588	80e3a54e37f5e83b8bdab98b2ca765baaecb72c303fe44bc85ab85e7ece76764.exe	26
PID 1588 wrote to memory of 1980	1588	80e3a54e37f5e83b8bdab98b2ca765baaecb72c303fe44bc85ab85e7ece76764.exe	26
PID 1588 wrote to memory of 1980	1588	80e3a54e37f5e83b8bdab98b2ca765baaecb72c303fe44bc85ab85e7ece76764.exe	26
PID 1980 wrote to memory of 2004	1980	cmd.exe	28
PID 1980 wrote to memory of 2004	1980	cmd.exe	28
PID 1980 wrote to memory of 2004	1980	cmd.exe	28
PID 1980 wrote to memory of 2004	1980	cmd.exe	28
PID 2004 wrote to memory of 1928	2004	cmd.exe	29
PID 2004 wrote to memory of 1928	2004	cmd.exe	29
PID 2004 wrote to memory of 1928	2004	cmd.exe	29
PID 2004 wrote to memory of 1928	2004	cmd.exe	29
PID 1928 wrote to memory of 1900	1928	chsbmifs.exe	30
PID 1928 wrote to memory of 1900	1928	chsbmifs.exe	30
PID 1928 wrote to memory of 1900	1928	chsbmifs.exe	30
PID 1928 wrote to memory of 1900	1928	chsbmifs.exe	30
PID 1928 wrote to memory of 1900	1928	chsbmifs.exe	30
PID 1928 wrote to memory of 1900	1928	chsbmifs.exe	30
PID 1928 wrote to memory of 1900	1928	chsbmifs.exe	30
PID 1900 wrote to memory of 1276	1900	svchost.exe	21
PID 1900 wrote to memory of 1276	1900	svchost.exe	21
PID 1900 wrote to memory of 1276	1900	svchost.exe	21

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:1276
- C:\Users\Admin\AppData\Local\Temp\80e3a54e37f5e83b8bdab98b2ca765baaecb72c303fe44bc85ab85e7ece76764.exe
  "C:\Users\Admin\AppData\Local\Temp\80e3a54e37f5e83b8bdab98b2ca765baaecb72c303fe44bc85ab85e7ece76764.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:1588
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\6B6\35B.bat" "C:\Users\Admin\AppData\Roaming\apssclnt\chsbmifs.exe" "C:\Users\Admin\AppData\Local\Temp\80E3A5~1.EXE""
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1980
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /C ""C:\Users\Admin\AppData\Roaming\apssclnt\chsbmifs.exe" "C:\Users\Admin\AppData\Local\Temp\80E3A5~1.EXE""
      4⤵
      Loads dropped DLL
      Suspicious use of WriteProcessMemory
      PID:2004
    - - C:\Users\Admin\AppData\Roaming\apssclnt\chsbmifs.exe
        
        "C:\Users\Admin\AppData\Roaming\apssclnt\chsbmifs.exe" "C:\Users\Admin\AppData\Local\Temp\80E3A5~1.EXE"
        5⤵
        Executes dropped EXE
        Deletes itself
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of WriteProcessMemory
        
        PID:1928
      - C:\Windows\system32\svchost.exe
        
        C:\Windows\system32\svchost.exe
        6⤵
        Suspicious use of SetThreadContext
        Suspicious behavior: MapViewOfSection
        Suspicious use of WriteProcessMemory
        
        PID:1900

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/636-10-0x000007FEF68D0000-0x000007FEF6B4A000-memory.dmp

Filesize
2.5MB

Download
memory/1900-11-0x0000000002590000-0x0000000002626000-memory.dmp

Filesize
600KB

Download
memory/1928-8-0x0000000002760000-0x00000000027F6000-memory.dmp

Filesize
600KB

Download

Resubmissions

Analysis

Sharing