gozi_ifsb | 00a0bc861d373a173fa465705d2e6760401413e6daee4d4ee13a5205256553b1

Analysis

max time kernel
153s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
01/10/2022, 23:08

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General

Target
00a0bc861d373a173fa465705d2e6760401413e6daee4d4ee13a5205256553b1.exe
Size 392KB
Sample221001-24krnacebq
SHA256 00a0bc861d373a173fa465705d2e6760401413e6daee4d4ee13a5205256553b1
MD5 64b58ecac6319443fd82a68bbc6593c0
SHA1 2132465f14b8910d650fc432e07d505a277ba33d
SHA512 b0692d77fedb5789a5602420e85a2e4bb6c4cda4ea5d0e4ecfe2b1dd2844a28dff5c6a0537187f9269bbeefceb199a3bfa4867f41ca55107362c450ecb9d0e2b
SSDEEP 6144:VoBJ469J803mzXLavaHWydKiztOdIRzduOqPxPmMoemVdDq:VoBC6uiWZ5zt8IvuxeM5mVh
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gozi_ifsb 3004 banker persistence trojan

Malware Config

Extracted

Family

gozi_ifsb

Botnet

3004

shiharch.net
naperedfish.com
naberplus.com
postpacifoc.com
gekkoting.com

Attributes

exe_type
worker
server_id
12

rsa_pubkey.plain

serpent.plain

Signatures

Gozi, Gozi IFSB
Gozi ISFB is a well-known and widely distributed banking trojan.
banker trojan gozi_ifsb

Executes dropped EXE 1 IoCs

pid	Process
4052	ClouinRT.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	00a0bc861d373a173fa465705d2e6760401413e6daee4d4ee13a5205256553b1.exe

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-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Bcasvice = "C:\\Users\\Admin\\AppData\\Roaming\\ClouinRT.exe"	00a0bc861d373a173fa465705d2e6760401413e6daee4d4ee13a5205256553b1.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1864 wrote to memory of 544	1864	00a0bc861d373a173fa465705d2e6760401413e6daee4d4ee13a5205256553b1.exe	87
PID 1864 wrote to memory of 544	1864	00a0bc861d373a173fa465705d2e6760401413e6daee4d4ee13a5205256553b1.exe	87
PID 1864 wrote to memory of 544	1864	00a0bc861d373a173fa465705d2e6760401413e6daee4d4ee13a5205256553b1.exe	87
PID 544 wrote to memory of 1076	544	cmd.exe	89
PID 544 wrote to memory of 1076	544	cmd.exe	89
PID 544 wrote to memory of 1076	544	cmd.exe	89
PID 1076 wrote to memory of 4052	1076	cmd.exe	90
PID 1076 wrote to memory of 4052	1076	cmd.exe	90
PID 1076 wrote to memory of 4052	1076	cmd.exe	90

C:\Users\Admin\AppData\Local\Temp\00a0bc861d373a173fa465705d2e6760401413e6daee4d4ee13a5205256553b1.exe
"C:\Users\Admin\AppData\Local\Temp\00a0bc861d373a173fa465705d2e6760401413e6daee4d4ee13a5205256553b1.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1864
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1B9B.bat" "C:\Users\Admin\AppData\Roaming\ClouinRT.exe" "C:\Users\Admin\AppData\Local\Temp\00A0BC~1.EXE""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:544
- - C:\Windows\SysWOW64\cmd.exe
    cmd /C ""C:\Users\Admin\AppData\Roaming\ClouinRT.exe" "C:\Users\Admin\AppData\Local\Temp\00A0BC~1.EXE""
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1076
  - - C:\Users\Admin\AppData\Roaming\ClouinRT.exe
      "C:\Users\Admin\AppData\Roaming\ClouinRT.exe" "C:\Users\Admin\AppData\Local\Temp\00A0BC~1.EXE"
      4⤵
      Executes dropped EXE
      PID:4052

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

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

1B9B.bat

Path C:\Users\Admin\AppData\Local\Temp\1B9B.bat
Size 112B
SHA256 4d3a7ba9e1380d8887d829d4ad4dba4667fa7921ea5720ef88bcaf8981b49bcc
MD5 da4b8a1c6f158ba0c6c192f4a48a2868
SHA1 8178f46e74e61f1fe12c3e2559ef24129ee157d2
SHA512 cf5a91b7c8275e0ef30e4863a22082a208dd492983b04bfe7c8e1dd0591c5ee4a4d1d65cfa8ab18a435f130bdccddddca75e54d3f1cfb45b3c2d073c5a19f4d9
MD5 SHA1 SHA512

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ClouinRT.exe

Path C:\Users\Admin\AppData\Roaming\ClouinRT.exe
Size 392KB
SHA256 00a0bc861d373a173fa465705d2e6760401413e6daee4d4ee13a5205256553b1
MD5 64b58ecac6319443fd82a68bbc6593c0
SHA1 2132465f14b8910d650fc432e07d505a277ba33d
SHA512 b0692d77fedb5789a5602420e85a2e4bb6c4cda4ea5d0e4ecfe2b1dd2844a28dff5c6a0537187f9269bbeefceb199a3bfa4867f41ca55107362c450ecb9d0e2b
SSDEEP 6144:VoBJ469J803mzXLavaHWydKiztOdIRzduOqPxPmMoemVdDq:VoBC6uiWZ5zt8IvuxeM5mVh
MD5 SHA1 SHA512 SSDEEP

Submit Download

ClouinRT.exe

Path C:\Users\Admin\AppData\Roaming\ClouinRT.exe
Size 392KB
SHA256 00a0bc861d373a173fa465705d2e6760401413e6daee4d4ee13a5205256553b1
MD5 64b58ecac6319443fd82a68bbc6593c0
SHA1 2132465f14b8910d650fc432e07d505a277ba33d
SHA512 b0692d77fedb5789a5602420e85a2e4bb6c4cda4ea5d0e4ecfe2b1dd2844a28dff5c6a0537187f9269bbeefceb199a3bfa4867f41ca55107362c450ecb9d0e2b
SSDEEP 6144:VoBJ469J803mzXLavaHWydKiztOdIRzduOqPxPmMoemVdDq:VoBC6uiWZ5zt8IvuxeM5mVh
MD5 SHA1 SHA512 SSDEEP

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memory/1864-132-0x00000000021F0000-0x0000000002229000-memory.dmp

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memory/1864-133-0x0000000000400000-0x0000000000465000-memory.dmp

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memory/1864-134-0x0000000000400000-0x0000000000465000-memory.dmp

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memory/1864-136-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/4052-142-0x0000000000400000-0x0000000000465000-memory.dmp

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memory/4052-143-0x0000000000400000-0x0000000000465000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads