gozi_ifsb | a0bd4ce77bdb2eb80482cea76fd3d3af8eb6ed9ee5a4e1388e3ba90768ec7848 | Triage

Analysis

max time kernel
91s
max time network
93s
platform
windows7_x64
resource
win7v20210410
submitted
18-06-2021 15:25

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General

Target

mazu8.dll
Size

492KB
MD5

86c8dfad40c3433eb50b0cc476709c16
SHA1

5c8801339c173af1a1f886d93be9f14b7bc9221b
SHA256

a0bd4ce77bdb2eb80482cea76fd3d3af8eb6ed9ee5a4e1388e3ba90768ec7848
SHA512

56c3b727309f2ae6c636933d78b7f5db503b1ef57ef24ff71b347698c4e5c282d4cb4011e93c5a096105ec83845bb1ff44a89a33d8bec1701b3425ad59ea848b

Score

10^/10

gozi_ifsb 6000 banker trojan

Malware Config

Extracted

Family

gozi_ifsb

Botnet

6000

C2

authd.feronok.com

app.bighomegl.at

Attributes

build
250204
exe_type
loader
server_id
580

rsa_pubkey.base64

serpent.plain

Signatures

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

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1096 wrote to memory of 1988	1096	rundll32.exe	rundll32.exe
PID 1096 wrote to memory of 1988	1096	rundll32.exe	rundll32.exe
PID 1096 wrote to memory of 1988	1096	rundll32.exe	rundll32.exe
PID 1096 wrote to memory of 1988	1096	rundll32.exe	rundll32.exe
PID 1096 wrote to memory of 1988	1096	rundll32.exe	rundll32.exe
PID 1096 wrote to memory of 1988	1096	rundll32.exe	rundll32.exe
PID 1096 wrote to memory of 1988	1096	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\mazu8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1096

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\mazu8.dll,#1
2⤵
PID:1988

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1988-59-0x0000000000000000-mapping.dmp

Download
memory/1988-60-0x0000000075281000-0x0000000075283000-memory.dmp

Filesize
8KB

Download
memory/1988-61-0x00000000006F0000-0x0000000000780000-memory.dmp

Filesize
576KB

Download
memory/1988-62-0x00000000006F0000-0x00000000006FD000-memory.dmp

Filesize
52KB

Download
memory/1988-63-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download