gozi | 05e33f5e53db406bfa76e2bf569b1c21b4bffec3b90d1e8059963a2214d97e3c

Analysis

max time kernel
117s
max time network
88s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-12-2024 22:42

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General

Target

05e33f5e53db406bfa76e2bf569b1c21b4bffec3b90d1e8059963a2214d97e3cN.dll
Size

971KB
MD5

257a35e347e7f71dc1425ff153ec2510
SHA1

79a6d6e5ebc2d8357d3c3e4c0ac2bee55eea5fb2
SHA256

05e33f5e53db406bfa76e2bf569b1c21b4bffec3b90d1e8059963a2214d97e3c
SHA512

593399bdd9ec38f3c4b5c901243241bfb33885835cfd5e5f5a67d2052b0a4c67290dde0d42a0541234164857ec75bf6b63f6e1eeab076bed0e3b3b785a8f7c61
SSDEEP

24576:dGlkSyXOKByXVHmuUAQrFZ5J5EdG9UAGPatVWZ:oyeKByF5U9FZ5J5YatVWZ

Score

10^/10

gozi 1000 banker discovery isfb persistence trojan

Malware Config

Extracted

Family

gozi

Extracted

Family

gozi

Botnet

1000

http://ey7kuuklgieop2pq.onion

http://shoshanna.at

http://maiamirainy.at

Attributes

build
217027
dga_base_url
constitution.org/usdeclar.txt
dga_crc
0x4eb7d2ca
dga_season
10
dga_tlds
com

ru

org
exe_type
worker
server_id
12

rsa_pubkey.plain

serpent.plain

Signatures

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

Unexpected DNS network traffic destination 3 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	208.67.222.222
Destination IP	208.67.222.222
Destination IP	208.67.222.222

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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\Authfdts = "rundll32 \"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Cewmxapi\\apilxva2.dll\",DllRegisterServer"	Explorer.EXE

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2404 set thread context of 1496	2404	rundll32.exe	32
PID 1496 set thread context of 1204	1496	control.exe	21
PID 1496 set thread context of 2880	1496	control.exe	33
PID 1204 set thread context of 2164	1204	Explorer.EXE	39

System Location Discovery: System Language Discovery 1 TTPs 2 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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2404	rundll32.exe
1204	Explorer.EXE

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
2404	rundll32.exe
1496	control.exe
1496	control.exe
1204	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1204	Explorer.EXE
1204	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1204	Explorer.EXE
1204	Explorer.EXE

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1204	Explorer.EXE

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 2404	2168	rundll32.exe	30
PID 2168 wrote to memory of 2404	2168	rundll32.exe	30
PID 2168 wrote to memory of 2404	2168	rundll32.exe	30
PID 2168 wrote to memory of 2404	2168	rundll32.exe	30
PID 2168 wrote to memory of 2404	2168	rundll32.exe	30
PID 2168 wrote to memory of 2404	2168	rundll32.exe	30
PID 2168 wrote to memory of 2404	2168	rundll32.exe	30
PID 2404 wrote to memory of 1496	2404	rundll32.exe	32
PID 2404 wrote to memory of 1496	2404	rundll32.exe	32
PID 2404 wrote to memory of 1496	2404	rundll32.exe	32
PID 2404 wrote to memory of 1496	2404	rundll32.exe	32
PID 2404 wrote to memory of 1496	2404	rundll32.exe	32
PID 2404 wrote to memory of 1496	2404	rundll32.exe	32
PID 2404 wrote to memory of 1496	2404	rundll32.exe	32
PID 1496 wrote to memory of 1204	1496	control.exe	21
PID 1496 wrote to memory of 1204	1496	control.exe	21
PID 1496 wrote to memory of 1204	1496	control.exe	21
PID 1496 wrote to memory of 2880	1496	control.exe	33
PID 1496 wrote to memory of 2880	1496	control.exe	33
PID 1496 wrote to memory of 2880	1496	control.exe	33
PID 1496 wrote to memory of 2880	1496	control.exe	33
PID 1496 wrote to memory of 2880	1496	control.exe	33
PID 1496 wrote to memory of 2880	1496	control.exe	33
PID 1204 wrote to memory of 1820	1204	Explorer.EXE	34
PID 1204 wrote to memory of 1820	1204	Explorer.EXE	34
PID 1204 wrote to memory of 1820	1204	Explorer.EXE	34
PID 1820 wrote to memory of 1936	1820	cmd.exe	36
PID 1820 wrote to memory of 1936	1820	cmd.exe	36
PID 1820 wrote to memory of 1936	1820	cmd.exe	36
PID 1204 wrote to memory of 1612	1204	Explorer.EXE	37
PID 1204 wrote to memory of 1612	1204	Explorer.EXE	37
PID 1204 wrote to memory of 1612	1204	Explorer.EXE	37
PID 1204 wrote to memory of 2164	1204	Explorer.EXE	39
PID 1204 wrote to memory of 2164	1204	Explorer.EXE	39
PID 1204 wrote to memory of 2164	1204	Explorer.EXE	39
PID 1204 wrote to memory of 2164	1204	Explorer.EXE	39
PID 1204 wrote to memory of 2164	1204	Explorer.EXE	39
PID 1204 wrote to memory of 2164	1204	Explorer.EXE	39
PID 1204 wrote to memory of 2164	1204	Explorer.EXE	39

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\05e33f5e53db406bfa76e2bf569b1c21b4bffec3b90d1e8059963a2214d97e3cN.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2168
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\05e33f5e53db406bfa76e2bf569b1c21b4bffec3b90d1e8059963a2214d97e3cN.dll,#1
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:2404
  - - C:\Windows\system32\control.exe
      C:\Windows\system32\control.exe /?
      4⤵
      Suspicious use of SetThreadContext
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:1496
    - - C:\Windows\system32\rundll32.exe
        
        "C:\Windows\system32\rundll32.exe" Shell32.dll,Control_RunDLL /?
        5⤵
        
        PID:2880
- C:\Windows\system32\cmd.exe
  cmd /C "nslookup myip.opendns.com resolver1.opendns.com > C:\Users\Admin\AppData\Local\Temp\8938.bi1"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1820
- - C:\Windows\system32\nslookup.exe
    nslookup myip.opendns.com resolver1.opendns.com
    3⤵
    PID:1936
- C:\Windows\system32\cmd.exe
  cmd /C "echo -------- >> C:\Users\Admin\AppData\Local\Temp\8938.bi1"
  2⤵
  PID:1612
- C:\Windows\syswow64\cmd.exe
  "C:\Windows\syswow64\cmd.exe" /C pause dll mail, ,
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2164

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 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\8938.bi1

Filesize
122B

MD5
4e722b4828cea8a135eb7a2bfd92ab01

SHA1
8e1abee672a878fd9c1d33e242502205d9b2da55

SHA256
c4d1feacbfb9ecd1a24e9b6d3e51fc7e9797da543d319f43ff0917db4c1e5e02

SHA512
88c0d6b07d45f906164b2c1178a938ffb56c4fa7288853a02f460339bca026fa58b26a37f52ea846bc205e1828f12f0361d1b0425a1106c8b1a947856d4ee4e4

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Cewmxapi\apilxva2.dll

Filesize
971KB

MD5
257a35e347e7f71dc1425ff153ec2510

SHA1
79a6d6e5ebc2d8357d3c3e4c0ac2bee55eea5fb2

SHA256
05e33f5e53db406bfa76e2bf569b1c21b4bffec3b90d1e8059963a2214d97e3c

SHA512
593399bdd9ec38f3c4b5c901243241bfb33885835cfd5e5f5a67d2052b0a4c67290dde0d42a0541234164857ec75bf6b63f6e1eeab076bed0e3b3b785a8f7c61

Download Submit
memory/1204-31-0x00000000050D0000-0x0000000005181000-memory.dmp

Filesize
708KB

Download
memory/1204-40-0x00000000050D0000-0x0000000005181000-memory.dmp

Filesize
708KB

Download
memory/1204-55-0x00000000050D0000-0x0000000005181000-memory.dmp

Filesize
708KB

Download
memory/1204-60-0x00000000050D0000-0x0000000005181000-memory.dmp

Filesize
708KB

Download
memory/1204-50-0x00000000050D0000-0x0000000005181000-memory.dmp

Filesize
708KB

Download
memory/1204-30-0x0000000002DC0000-0x0000000002DC1000-memory.dmp

Filesize
4KB

Download
memory/1204-35-0x00000000050D0000-0x0000000005181000-memory.dmp

Filesize
708KB

Download
memory/1204-59-0x00000000050D0000-0x0000000005181000-memory.dmp

Filesize
708KB

Download
memory/1204-32-0x00000000050D0000-0x0000000005181000-memory.dmp

Filesize
708KB

Download
memory/1204-33-0x00000000050D0000-0x0000000005181000-memory.dmp

Filesize
708KB

Download
memory/1204-34-0x00000000050D0000-0x0000000005181000-memory.dmp

Filesize
708KB

Download
memory/1204-24-0x00000000050D0000-0x0000000005181000-memory.dmp

Filesize
708KB

Download
memory/1204-61-0x00000000050D0000-0x0000000005181000-memory.dmp

Filesize
708KB

Download
memory/1204-37-0x00000000050D0000-0x0000000005181000-memory.dmp

Filesize
708KB

Download
memory/1204-36-0x00000000050D0000-0x0000000005181000-memory.dmp

Filesize
708KB

Download
memory/1496-23-0x0000000000160000-0x0000000000211000-memory.dmp

Filesize
708KB

Download
memory/1496-15-0x0000000000160000-0x0000000000211000-memory.dmp

Filesize
708KB

Download
memory/1496-25-0x0000000000160000-0x0000000000211000-memory.dmp

Filesize
708KB

Download
memory/1496-48-0x0000000000160000-0x0000000000211000-memory.dmp

Filesize
708KB

Download
memory/1496-14-0x000007FFFFFD4000-0x000007FFFFFD5000-memory.dmp

Filesize
4KB

Download
memory/1496-22-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2164-56-0x0000000000270000-0x0000000000314000-memory.dmp

Filesize
656KB

Download
memory/2404-21-0x0000000073840000-0x0000000074246000-memory.dmp

Filesize
10.0MB

Download
memory/2404-3-0x0000000073840000-0x0000000074246000-memory.dmp

Filesize
10.0MB

Download
memory/2404-12-0x00000000004D0000-0x000000000051A000-memory.dmp

Filesize
296KB

Download
memory/2404-5-0x00000000004D0000-0x000000000051A000-memory.dmp

Filesize
296KB

Download
memory/2404-4-0x0000000073840000-0x0000000074246000-memory.dmp

Filesize
10.0MB

Download
memory/2404-0-0x0000000073840000-0x0000000074246000-memory.dmp

Filesize
10.0MB

Download
memory/2404-1-0x0000000073840000-0x0000000074246000-memory.dmp

Filesize
10.0MB

Download
memory/2404-2-0x000000007392B000-0x0000000073931000-memory.dmp

Filesize
24KB

Download
memory/2880-41-0x000007FFFFFD6000-0x000007FFFFFD7000-memory.dmp

Filesize
4KB

Download
memory/2880-46-0x00000000003C0000-0x0000000000471000-memory.dmp

Filesize
708KB

Download
memory/2880-47-0x00000000003C0000-0x0000000000471000-memory.dmp

Filesize
708KB

Download
memory/2880-42-0x00000000003C0000-0x0000000000471000-memory.dmp

Filesize
708KB

Download