gozi_ifsb | 5b3f58a5ad9ff0c0a11055d34a08ec2a046144c82f88f1e2735f794402705c80

General

Target
5b3f58a5ad9ff0c0a11055d34a08ec2a046144c82f88f1e2735f794402705c80.exe
Size 361KB
Sample220802-as87bsbdc6
SHA256 5b3f58a5ad9ff0c0a11055d34a08ec2a046144c82f88f1e2735f794402705c80
MD5 64139ece03d78520b9dae8d1313da69e
SHA1 45e19e267688c8472ce882afe93becb043b718d1
SHA512 2daa3467bb5bb3af17f94503946eab4f07e8a7e09906ed54d843aa80ae90ced32d574b08b7c1ee78c56d3a7a950799cafa9705d1c39df3e9888865a004db7b84
MD5 SHA1 SHA512

Score

10^/10

gozi_ifsb 1010 banker persistence trojan

Malware Config

Extracted

Family

gozi_ifsb

Botnet

1010

C2

diuolirt.at
deopliazae.at
nifredao.com
filokiyurt.at

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
4896	Bingutil.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-1-5-21-3463845317-933582289-45817732-1000\Control Panel\International\Geo\Nation	5b3f58a5ad9ff0c0a11055d34a08ec2a046144c82f88f1e2735f794402705c80.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-1-5-21-3463845317-933582289-45817732-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AcGeecfc = "C:\\Users\\Admin\\AppData\\Roaming\\capahost\\Bingutil.exe"	5b3f58a5ad9ff0c0a11055d34a08ec2a046144c82f88f1e2735f794402705c80.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2064	4896	WerFault.exe	82

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4896	Bingutil.exe
4896	Bingutil.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 5048 wrote to memory of 4444	5048	5b3f58a5ad9ff0c0a11055d34a08ec2a046144c82f88f1e2735f794402705c80.exe	79
PID 5048 wrote to memory of 4444	5048	5b3f58a5ad9ff0c0a11055d34a08ec2a046144c82f88f1e2735f794402705c80.exe	79
PID 5048 wrote to memory of 4444	5048	5b3f58a5ad9ff0c0a11055d34a08ec2a046144c82f88f1e2735f794402705c80.exe	79
PID 4444 wrote to memory of 2412	4444	cmd.exe	81
PID 4444 wrote to memory of 2412	4444	cmd.exe	81
PID 4444 wrote to memory of 2412	4444	cmd.exe	81
PID 2412 wrote to memory of 4896	2412	cmd.exe	82
PID 2412 wrote to memory of 4896	2412	cmd.exe	82
PID 2412 wrote to memory of 4896	2412	cmd.exe	82
PID 4896 wrote to memory of 1800	4896	Bingutil.exe	83
PID 4896 wrote to memory of 1800	4896	Bingutil.exe	83

C:\Users\Admin\AppData\Local\Temp\5b3f58a5ad9ff0c0a11055d34a08ec2a046144c82f88f1e2735f794402705c80.exe
"C:\Users\Admin\AppData\Local\Temp\5b3f58a5ad9ff0c0a11055d34a08ec2a046144c82f88f1e2735f794402705c80.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:5048
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\22E\8117.bat" "C:\Users\Admin\AppData\Roaming\capahost\Bingutil.exe" "C:\Users\Admin\AppData\Local\Temp\5B3F58~1.EXE""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4444
- - C:\Windows\SysWOW64\cmd.exe
    cmd /C ""C:\Users\Admin\AppData\Roaming\capahost\Bingutil.exe" "C:\Users\Admin\AppData\Local\Temp\5B3F58~1.EXE""
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2412
  - - C:\Users\Admin\AppData\Roaming\capahost\Bingutil.exe
      "C:\Users\Admin\AppData\Roaming\capahost\Bingutil.exe" "C:\Users\Admin\AppData\Local\Temp\5B3F58~1.EXE"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:4896
    - - C:\Windows\system32\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:1800
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4896 -s 560
        5⤵
        Program crash
        
        PID:2064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4896 -ip 4896
1⤵
PID:4756

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

8117.bat

Path C:\Users\Admin\AppData\Local\Temp\22E\8117.bat
Size 112B
SHA256 f385d773062f6036a0d3693b3054f33031f69390b58a51124369ba4a5fd4453c
MD5 ab67e168c79bbe6272bfa20c8b07718c
SHA1 29f2373db9c15ea2755bd387a900679447449ea2
SHA512 116a6c62e5d5acda63b9cacd0e10201e598b75130a587019137899f5b58907705252f19565e2f2ebe49f1e3a2232564b121e0d076a4a927850830c103182343b
MD5 SHA1 SHA512

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Bingutil.exe

Path C:\Users\Admin\AppData\Roaming\capahost\Bingutil.exe
Size 361KB
SHA256 5b3f58a5ad9ff0c0a11055d34a08ec2a046144c82f88f1e2735f794402705c80
MD5 64139ece03d78520b9dae8d1313da69e
SHA1 45e19e267688c8472ce882afe93becb043b718d1
SHA512 2daa3467bb5bb3af17f94503946eab4f07e8a7e09906ed54d843aa80ae90ced32d574b08b7c1ee78c56d3a7a950799cafa9705d1c39df3e9888865a004db7b84
SSDEEP 6144:+IVQv0y3NRJO22A8oos+W0OBMgxDy1+yAD20GvPYE8a:nVQvBNfORjVOB7xDQ1AD20GXYEZ
MD5 SHA1 SHA512 SSDEEP

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Bingutil.exe

Path C:\Users\Admin\AppData\Roaming\capahost\Bingutil.exe
Size 361KB
SHA256 5b3f58a5ad9ff0c0a11055d34a08ec2a046144c82f88f1e2735f794402705c80
MD5 64139ece03d78520b9dae8d1313da69e
SHA1 45e19e267688c8472ce882afe93becb043b718d1
SHA512 2daa3467bb5bb3af17f94503946eab4f07e8a7e09906ed54d843aa80ae90ced32d574b08b7c1ee78c56d3a7a950799cafa9705d1c39df3e9888865a004db7b84
SSDEEP 6144:+IVQv0y3NRJO22A8oos+W0OBMgxDy1+yAD20GvPYE8a:nVQvBNfORjVOB7xDQ1AD20GXYEZ
MD5 SHA1 SHA512 SSDEEP

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memory/4896-141-0x0000000000400000-0x000000000045D000-memory.dmp

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memory/4896-143-0x00000000005F0000-0x0000000000620000-memory.dmp

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memory/5048-132-0x0000000000400000-0x000000000045D000-memory.dmp

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memory/5048-134-0x0000000000630000-0x0000000000660000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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