gozi | a6bd6ddfd9f1f5a6afc1a681707d97a29d2c89bdebf34a58117292f46df9f5c7

Analysis

max time kernel
600s
max time network
597s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-11-2024 11:10

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General

Target

cry4.exe
Size

507KB
MD5

6e352a6e96db293f487d1c1996f7ca60
SHA1

887a357a96b9dbb428b6b776a3ec8ca8de746f18
SHA256

49b84085b7cc731d39fda5a6c15d8bedf3051f3e3f8792f4a50220ebdbf1a4c6
SHA512

bad3b109707b7ba714ccfd41109d6defe9aa2c651cd7dd8c91f536622fa52394071e858a81a2844421a56219527737d395580ea73e250f6cb44c4c1c4959351d
SSDEEP

12288:IEi3NId2zO8PW418jZZUozZuzYgwz3r14Y07KCJ:GrdZ+tZlVUYBzB0KC

Score

10^/10

gozi banker discovery isfb persistence trojan

Malware Config

Extracted

Family

gozi

Attributes

build
215798

rsa_pubkey.plain

Signatures

Gozi
Gozi is a well-known and widely distributed banking trojan.
banker trojan gozi
Gozi family
gozi

Executes dropped EXE 2 IoCs

pid	Process
2704	cewmnect.exe
2712	cewmnect.exe

Loads dropped DLL 2 IoCs

pid	Process
2668	cmd.exe
2668	cmd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\desksenh = "C:\\Users\\Admin\\AppData\\Roaming\\difxuser\\cewmnect.exe"	cry4.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2204 set thread context of 2176	2204	cry4.exe	31
PID 2704 set thread context of 2712	2704	cewmnect.exe	36
PID 2712 set thread context of 2016	2712	cewmnect.exe	37
PID 2016 set thread context of 1132	2016	svchost.exe	20

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cry4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cewmnect.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cewmnect.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cry4.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2712	cewmnect.exe
1132	Explorer.EXE

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2712	cewmnect.exe
2016	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1132	Explorer.EXE
Token: SeShutdownPrivilege	1132	Explorer.EXE

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1132	Explorer.EXE

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 2176	2204	cry4.exe	31
PID 2204 wrote to memory of 2176	2204	cry4.exe	31
PID 2204 wrote to memory of 2176	2204	cry4.exe	31
PID 2204 wrote to memory of 2176	2204	cry4.exe	31
PID 2204 wrote to memory of 2176	2204	cry4.exe	31
PID 2204 wrote to memory of 2176	2204	cry4.exe	31
PID 2204 wrote to memory of 2176	2204	cry4.exe	31
PID 2204 wrote to memory of 2176	2204	cry4.exe	31
PID 2204 wrote to memory of 2176	2204	cry4.exe	31
PID 2204 wrote to memory of 2176	2204	cry4.exe	31
PID 2204 wrote to memory of 2176	2204	cry4.exe	31
PID 2176 wrote to memory of 2744	2176	cry4.exe	32
PID 2176 wrote to memory of 2744	2176	cry4.exe	32
PID 2176 wrote to memory of 2744	2176	cry4.exe	32
PID 2176 wrote to memory of 2744	2176	cry4.exe	32
PID 2744 wrote to memory of 2668	2744	cmd.exe	34
PID 2744 wrote to memory of 2668	2744	cmd.exe	34
PID 2744 wrote to memory of 2668	2744	cmd.exe	34
PID 2744 wrote to memory of 2668	2744	cmd.exe	34
PID 2668 wrote to memory of 2704	2668	cmd.exe	35
PID 2668 wrote to memory of 2704	2668	cmd.exe	35
PID 2668 wrote to memory of 2704	2668	cmd.exe	35
PID 2668 wrote to memory of 2704	2668	cmd.exe	35
PID 2704 wrote to memory of 2712	2704	cewmnect.exe	36
PID 2704 wrote to memory of 2712	2704	cewmnect.exe	36
PID 2704 wrote to memory of 2712	2704	cewmnect.exe	36
PID 2704 wrote to memory of 2712	2704	cewmnect.exe	36
PID 2704 wrote to memory of 2712	2704	cewmnect.exe	36
PID 2704 wrote to memory of 2712	2704	cewmnect.exe	36
PID 2704 wrote to memory of 2712	2704	cewmnect.exe	36
PID 2704 wrote to memory of 2712	2704	cewmnect.exe	36
PID 2704 wrote to memory of 2712	2704	cewmnect.exe	36
PID 2704 wrote to memory of 2712	2704	cewmnect.exe	36
PID 2704 wrote to memory of 2712	2704	cewmnect.exe	36
PID 2712 wrote to memory of 2016	2712	cewmnect.exe	37
PID 2712 wrote to memory of 2016	2712	cewmnect.exe	37
PID 2712 wrote to memory of 2016	2712	cewmnect.exe	37
PID 2712 wrote to memory of 2016	2712	cewmnect.exe	37
PID 2712 wrote to memory of 2016	2712	cewmnect.exe	37
PID 2712 wrote to memory of 2016	2712	cewmnect.exe	37
PID 2712 wrote to memory of 2016	2712	cewmnect.exe	37
PID 2016 wrote to memory of 1132	2016	svchost.exe	20
PID 2016 wrote to memory of 1132	2016	svchost.exe	20
PID 2016 wrote to memory of 1132	2016	svchost.exe	20

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1132
- C:\Users\Admin\AppData\Local\Temp\cry4.exe
  "C:\Users\Admin\AppData\Local\Temp\cry4.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2204
- - C:\Users\Admin\AppData\Local\Temp\cry4.exe
    "C:\Users\Admin\AppData\Local\Temp\cry4.exe"
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2176
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\6336\319B.bat" "C:\Users\Admin\AppData\Roaming\difxuser\cewmnect.exe" "C:\Users\Admin\AppData\Local\Temp\cry4.exe""
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2744
    - - C:\Windows\SysWOW64\cmd.exe
        
        cmd /C ""C:\Users\Admin\AppData\Roaming\difxuser\cewmnect.exe" "C:\Users\Admin\AppData\Local\Temp\cry4.exe""
        5⤵
        Loads dropped DLL
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2668
      - C:\Users\Admin\AppData\Roaming\difxuser\cewmnect.exe
        
        "C:\Users\Admin\AppData\Roaming\difxuser\cewmnect.exe" "C:\Users\Admin\AppData\Local\Temp\cry4.exe"
        6⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2704
        
        C:\Users\Admin\AppData\Roaming\difxuser\cewmnect.exe
        
        "C:\Users\Admin\AppData\Roaming\difxuser\cewmnect.exe"
        7⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of WriteProcessMemory
        
        PID:2712
        
        C:\Windows\system32\svchost.exe
        
        C:\Windows\system32\svchost.exe
        8⤵
        Suspicious use of SetThreadContext
        Suspicious behavior: MapViewOfSection
        Suspicious use of WriteProcessMemory
        
        PID:2016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\6336\319B.bat

Filesize
112B

MD5
bc01f616c09d69a6dd36f7bc58286817

SHA1
b83283444714ab1e312a7b221dc709f8806c5ff4

SHA256
d19793bcf4f5441e08c64d40b4d4d31164efc59944f2d3ecc0a963ba55565e85

SHA512
f6764745c4c5ea014a349156299c2a0aab725fc0edbce095cff28cb1a37d4612db6c2d64bce0339bcb12c074d7aa9b7c226cd7f873c0c9e564de44c328e12b13

Download Submit
\Users\Admin\AppData\Roaming\difxuser\cewmnect.exe

Filesize
507KB

MD5
6e352a6e96db293f487d1c1996f7ca60

SHA1
887a357a96b9dbb428b6b776a3ec8ca8de746f18

SHA256
49b84085b7cc731d39fda5a6c15d8bedf3051f3e3f8792f4a50220ebdbf1a4c6

SHA512
bad3b109707b7ba714ccfd41109d6defe9aa2c651cd7dd8c91f536622fa52394071e858a81a2844421a56219527737d395580ea73e250f6cb44c4c1c4959351d

Download Submit
memory/1132-63-0x0000000006480000-0x0000000006584000-memory.dmp

Filesize
1.0MB

Download
memory/1132-75-0x0000000006480000-0x0000000006584000-memory.dmp

Filesize
1.0MB

Download
memory/1132-73-0x0000000006480000-0x0000000006584000-memory.dmp

Filesize
1.0MB

Download
memory/1132-72-0x0000000006480000-0x0000000006584000-memory.dmp

Filesize
1.0MB

Download
memory/1132-74-0x0000000006480000-0x0000000006584000-memory.dmp

Filesize
1.0MB

Download
memory/1132-71-0x0000000006480000-0x0000000006584000-memory.dmp

Filesize
1.0MB

Download
memory/2016-62-0x0000000000450000-0x0000000000554000-memory.dmp

Filesize
1.0MB

Download
memory/2016-57-0x0000000000450000-0x0000000000554000-memory.dmp

Filesize
1.0MB

Download
memory/2016-54-0x000007FFFFFD8000-0x000007FFFFFD9000-memory.dmp

Filesize
4KB

Download
memory/2176-6-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2176-4-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2176-2-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2176-29-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2176-10-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2176-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2176-8-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2176-14-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2176-17-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2176-16-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2176-0-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2712-61-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2712-53-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download