gozi_ifsb | ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7v20201028
submitted
08-11-2020 14:22

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General

Target

ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa.exe
Size

365KB
MD5

8f8fa2a30b7831c675f46d73797cb82d
SHA1

8ba2af9608ed6d56a415704bda042e30c8af79c0
SHA256

ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa
SHA512

9211d48db1035d568af288daf50fde2b56aec8e8945bbda28098cbc2175a6665895676a5c999039cce93302d26ac2b032720c71c35610c56086c01a84d1f6452

Score

10^/10

gozi_ifsb ursnif banker persistence spyware trojan

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
1140	chtbider.exe

Deletes itself 1 IoCs

pid	Process
1140	chtbider.exe

Loads dropped DLL 1 IoCs

pid	Process
1324	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-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\DHCPupnp = "C:\\Users\\Admin\\AppData\\Roaming\\drprssec\\chtbider.exe"	ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1140 set thread context of 1428	1140	chtbider.exe	33
PID 1428 set thread context of 1232	1428	svchost.exe	21

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1140	chtbider.exe
1232	Explorer.EXE

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1140	chtbider.exe
1428	svchost.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1232	Explorer.EXE
1232	Explorer.EXE
1232	Explorer.EXE
1232	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1232	Explorer.EXE
1232	Explorer.EXE
1232	Explorer.EXE
1232	Explorer.EXE

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 308 wrote to memory of 1700	308	ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa.exe	29
PID 308 wrote to memory of 1700	308	ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa.exe	29
PID 308 wrote to memory of 1700	308	ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa.exe	29
PID 308 wrote to memory of 1700	308	ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa.exe	29
PID 1700 wrote to memory of 1324	1700	cmd.exe	31
PID 1700 wrote to memory of 1324	1700	cmd.exe	31
PID 1700 wrote to memory of 1324	1700	cmd.exe	31
PID 1700 wrote to memory of 1324	1700	cmd.exe	31
PID 1324 wrote to memory of 1140	1324	cmd.exe	32
PID 1324 wrote to memory of 1140	1324	cmd.exe	32
PID 1324 wrote to memory of 1140	1324	cmd.exe	32
PID 1324 wrote to memory of 1140	1324	cmd.exe	32
PID 1140 wrote to memory of 1428	1140	chtbider.exe	33
PID 1140 wrote to memory of 1428	1140	chtbider.exe	33
PID 1140 wrote to memory of 1428	1140	chtbider.exe	33
PID 1140 wrote to memory of 1428	1140	chtbider.exe	33
PID 1140 wrote to memory of 1428	1140	chtbider.exe	33
PID 1140 wrote to memory of 1428	1140	chtbider.exe	33
PID 1140 wrote to memory of 1428	1140	chtbider.exe	33
PID 1428 wrote to memory of 1232	1428	svchost.exe	21
PID 1428 wrote to memory of 1232	1428	svchost.exe	21
PID 1428 wrote to memory of 1232	1428	svchost.exe	21
PID 1232 wrote to memory of 1156	1232	Explorer.EXE	36
PID 1232 wrote to memory of 1156	1232	Explorer.EXE	36
PID 1232 wrote to memory of 1156	1232	Explorer.EXE	36
PID 1156 wrote to memory of 1508	1156	cmd.exe	38
PID 1156 wrote to memory of 1508	1156	cmd.exe	38
PID 1156 wrote to memory of 1508	1156	cmd.exe	38
PID 1232 wrote to memory of 1028	1232	Explorer.EXE	39
PID 1232 wrote to memory of 1028	1232	Explorer.EXE	39
PID 1232 wrote to memory of 1028	1232	Explorer.EXE	39

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Users\Admin\AppData\Local\Temp\ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa.exe
  "C:\Users\Admin\AppData\Local\Temp\ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:308
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\F1EE\1F1.bat" "C:\Users\Admin\AppData\Roaming\drprssec\chtbider.exe" "C:\Users\Admin\AppData\Local\Temp\EE1217~1.EXE""
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1700
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /C ""C:\Users\Admin\AppData\Roaming\drprssec\chtbider.exe" "C:\Users\Admin\AppData\Local\Temp\EE1217~1.EXE""
      4⤵
      Loads dropped DLL
      Suspicious use of WriteProcessMemory
      PID:1324
    - - C:\Users\Admin\AppData\Roaming\drprssec\chtbider.exe
        
        "C:\Users\Admin\AppData\Roaming\drprssec\chtbider.exe" "C:\Users\Admin\AppData\Local\Temp\EE1217~1.EXE"
        5⤵
        Executes dropped EXE
        Deletes itself
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of WriteProcessMemory
        
        PID:1140
      - C:\Windows\system32\svchost.exe
        
        C:\Windows\system32\svchost.exe
        6⤵
        Suspicious use of SetThreadContext
        Suspicious behavior: MapViewOfSection
        Suspicious use of WriteProcessMemory
        
        PID:1428
- C:\Windows\system32\cmd.exe
  cmd /C "nslookup myip.opendns.com resolver1.opendns.com > C:\Users\Admin\AppData\Local\Temp\24E1.bi1"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1156
- - C:\Windows\system32\nslookup.exe
    nslookup myip.opendns.com resolver1.opendns.com
    3⤵
    PID:1508
- C:\Windows\system32\cmd.exe
  cmd /C "echo -------- >> C:\Users\Admin\AppData\Local\Temp\24E1.bi1"
  2⤵
  PID:1028

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1140-8-0x00000000025B0000-0x000000000263F000-memory.dmp

Filesize
572KB

Download
memory/1428-10-0x0000000000130000-0x0000000000165000-memory.dmp

Filesize
212KB

Download
memory/1428-11-0x0000000000250000-0x00000000002DF000-memory.dmp

Filesize
572KB

Download
memory/1628-12-0x000007FEF7040000-0x000007FEF72BA000-memory.dmp

Filesize
2.5MB

Download