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

cry6.exe
Size

511KB
MD5

afb4846bd287f31e6297cb4095aece65
SHA1

b92d682a800d82ff6e980deae88f6cb7e048c11d
SHA256

639a86559b0a086fe388e4309ea22e49f79362c0983df1a5b09fa477db3c463d
SHA512

8f5b3062a7f4faada34001bbe8510235d20b3d507ee0858ef23db92853f31a3075c60e37738a93e1385995199c9d99dccb7e547247fc9af5b8a8f3557d03d070
SSDEEP

12288:nTY7/WAuLAOOxsgfj40bDKg0m7t4is8jYar:kusO+RDKgJBnsgYa

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
2624	chtbider.exe
3016	chtbider.exe

Loads dropped DLL 2 IoCs

pid	Process
2592	cmd.exe
2592	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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\DHCPupnp = "C:\\Users\\Admin\\AppData\\Roaming\\drprssec\\chtbider.exe"	cry6.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2228 set thread context of 2676	2228	cry6.exe	30
PID 2624 set thread context of 3016	2624	chtbider.exe	35
PID 3016 set thread context of 1196	3016	chtbider.exe	36
PID 1196 set thread context of 1180	1196	svchost.exe	21

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	cry6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cry6.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	chtbider.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chtbider.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3016	chtbider.exe
1180	Explorer.EXE

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
3016	chtbider.exe
1196	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1180	Explorer.EXE
Token: SeShutdownPrivilege	1180	Explorer.EXE

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1180	Explorer.EXE

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 2676	2228	cry6.exe	30
PID 2228 wrote to memory of 2676	2228	cry6.exe	30
PID 2228 wrote to memory of 2676	2228	cry6.exe	30
PID 2228 wrote to memory of 2676	2228	cry6.exe	30
PID 2228 wrote to memory of 2676	2228	cry6.exe	30
PID 2228 wrote to memory of 2676	2228	cry6.exe	30
PID 2228 wrote to memory of 2676	2228	cry6.exe	30
PID 2228 wrote to memory of 2676	2228	cry6.exe	30
PID 2228 wrote to memory of 2676	2228	cry6.exe	30
PID 2228 wrote to memory of 2676	2228	cry6.exe	30
PID 2228 wrote to memory of 2676	2228	cry6.exe	30
PID 2676 wrote to memory of 2664	2676	cry6.exe	31
PID 2676 wrote to memory of 2664	2676	cry6.exe	31
PID 2676 wrote to memory of 2664	2676	cry6.exe	31
PID 2676 wrote to memory of 2664	2676	cry6.exe	31
PID 2664 wrote to memory of 2592	2664	cmd.exe	33
PID 2664 wrote to memory of 2592	2664	cmd.exe	33
PID 2664 wrote to memory of 2592	2664	cmd.exe	33
PID 2664 wrote to memory of 2592	2664	cmd.exe	33
PID 2592 wrote to memory of 2624	2592	cmd.exe	34
PID 2592 wrote to memory of 2624	2592	cmd.exe	34
PID 2592 wrote to memory of 2624	2592	cmd.exe	34
PID 2592 wrote to memory of 2624	2592	cmd.exe	34
PID 2624 wrote to memory of 3016	2624	chtbider.exe	35
PID 2624 wrote to memory of 3016	2624	chtbider.exe	35
PID 2624 wrote to memory of 3016	2624	chtbider.exe	35
PID 2624 wrote to memory of 3016	2624	chtbider.exe	35
PID 2624 wrote to memory of 3016	2624	chtbider.exe	35
PID 2624 wrote to memory of 3016	2624	chtbider.exe	35
PID 2624 wrote to memory of 3016	2624	chtbider.exe	35
PID 2624 wrote to memory of 3016	2624	chtbider.exe	35
PID 2624 wrote to memory of 3016	2624	chtbider.exe	35
PID 2624 wrote to memory of 3016	2624	chtbider.exe	35
PID 2624 wrote to memory of 3016	2624	chtbider.exe	35
PID 3016 wrote to memory of 1196	3016	chtbider.exe	36
PID 3016 wrote to memory of 1196	3016	chtbider.exe	36
PID 3016 wrote to memory of 1196	3016	chtbider.exe	36
PID 3016 wrote to memory of 1196	3016	chtbider.exe	36
PID 3016 wrote to memory of 1196	3016	chtbider.exe	36
PID 3016 wrote to memory of 1196	3016	chtbider.exe	36
PID 3016 wrote to memory of 1196	3016	chtbider.exe	36
PID 1196 wrote to memory of 1180	1196	svchost.exe	21
PID 1196 wrote to memory of 1180	1196	svchost.exe	21
PID 1196 wrote to memory of 1180	1196	svchost.exe	21

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1180
- C:\Users\Admin\AppData\Local\Temp\cry6.exe
  "C:\Users\Admin\AppData\Local\Temp\cry6.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2228
- - C:\Users\Admin\AppData\Local\Temp\cry6.exe
    "C:\Users\Admin\AppData\Local\Temp\cry6.exe"
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2676
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\B194\58CA.bat" "C:\Users\Admin\AppData\Roaming\drprssec\chtbider.exe" "C:\Users\Admin\AppData\Local\Temp\cry6.exe""
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2664
    - - C:\Windows\SysWOW64\cmd.exe
        
        cmd /C ""C:\Users\Admin\AppData\Roaming\drprssec\chtbider.exe" "C:\Users\Admin\AppData\Local\Temp\cry6.exe""
        5⤵
        Loads dropped DLL
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2592
      - C:\Users\Admin\AppData\Roaming\drprssec\chtbider.exe
        
        "C:\Users\Admin\AppData\Roaming\drprssec\chtbider.exe" "C:\Users\Admin\AppData\Local\Temp\cry6.exe"
        6⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2624
        
        C:\Users\Admin\AppData\Roaming\drprssec\chtbider.exe
        
        "C:\Users\Admin\AppData\Roaming\drprssec\chtbider.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:3016
        
        C:\Windows\system32\svchost.exe
        
        C:\Windows\system32\svchost.exe
        8⤵
        Suspicious use of SetThreadContext
        Suspicious behavior: MapViewOfSection
        Suspicious use of WriteProcessMemory
        
        PID:1196

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\B194\58CA.bat

Filesize
112B

MD5
39292e8b5766d04006a7a5fe4fba559c

SHA1
83ebd8f4e97e8704a4bc496fcf32a399a78cd6b9

SHA256
202b2077426e8f0ee5b44da806b25ed4711161fe3de456222277d9ef31855ae1

SHA512
9905c8a6f661df65b90e56c43d4c03688768b942c2ee9d36f5055ca083bd6a2fe7a10375f82aba7682f26c7ccd29111b8dee659f3f36a17e69f70891b451c1b7

Download Submit
\Users\Admin\AppData\Roaming\drprssec\chtbider.exe

Filesize
511KB

MD5
afb4846bd287f31e6297cb4095aece65

SHA1
b92d682a800d82ff6e980deae88f6cb7e048c11d

SHA256
639a86559b0a086fe388e4309ea22e49f79362c0983df1a5b09fa477db3c463d

SHA512
8f5b3062a7f4faada34001bbe8510235d20b3d507ee0858ef23db92853f31a3075c60e37738a93e1385995199c9d99dccb7e547247fc9af5b8a8f3557d03d070

Download Submit
memory/1180-61-0x0000000004D10000-0x0000000004E14000-memory.dmp

Filesize
1.0MB

Download
memory/1180-74-0x0000000004D10000-0x0000000004E14000-memory.dmp

Filesize
1.0MB

Download
memory/1180-70-0x0000000004D10000-0x0000000004E14000-memory.dmp

Filesize
1.0MB

Download
memory/1180-71-0x0000000004D10000-0x0000000004E14000-memory.dmp

Filesize
1.0MB

Download
memory/1180-73-0x0000000004D10000-0x0000000004E14000-memory.dmp

Filesize
1.0MB

Download
memory/1180-72-0x0000000004D10000-0x0000000004E14000-memory.dmp

Filesize
1.0MB

Download
memory/1196-62-0x0000000000540000-0x0000000000644000-memory.dmp

Filesize
1.0MB

Download
memory/1196-56-0x0000000000540000-0x0000000000644000-memory.dmp

Filesize
1.0MB

Download
memory/1196-53-0x000007FFFFFD4000-0x000007FFFFFD5000-memory.dmp

Filesize
4KB

Download
memory/2676-6-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2676-27-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2676-8-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2676-10-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2676-15-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2676-17-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2676-0-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2676-16-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2676-2-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2676-4-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2676-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3016-60-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/3016-52-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download