gozi_ifsb | b601a3c9c3a3df9043ea82733f1da5b413207d7585ca6b18baa8a4d923ce92d8 | Triage

Analysis

max time kernel
145s
max time network
145s
platform
windows10_x64
resource
win10v20210408
submitted
11-10-2021 15:34

Sharing

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General

Target

903cf677ba834a968b42bd71e4626a9d.dll
Size

701KB
MD5

903cf677ba834a968b42bd71e4626a9d
SHA1

c751f3ab4612917d15967fc1f0591e674c2e56ca
SHA256

b601a3c9c3a3df9043ea82733f1da5b413207d7585ca6b18baa8a4d923ce92d8
SHA512

b81d6b419c05ac351d086ab9d439b7cf2d8db21208f85b13e483bacb800a811890ca7fc3ce2295d2861f3323b0d52725e27f42758ef4ec6312018b4a7a249095

Score

10^/10

gozi_ifsb 8899 banker trojan

Malware Config

Extracted

Family

gozi_ifsb

Botnet

8899

C2

msn.com/mail

breuranel.website

outlook.com/signup

areuranel.website

Attributes

build
260212
dga_season
10
exe_type
loader
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
Blocklisted process makes network request 7 IoCs

Processes:

rundll32.exe

flow pid process

30 1932 rundll32.exe
32 1932 rundll32.exe
36 1932 rundll32.exe
38 1932 rundll32.exe
40 1932 rundll32.exe
44 1932 rundll32.exe
45 1932 rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 640 wrote to memory of 1932	640	rundll32.exe	rundll32.exe
PID 640 wrote to memory of 1932	640	rundll32.exe	rundll32.exe
PID 640 wrote to memory of 1932	640	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\903cf677ba834a968b42bd71e4626a9d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:640

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\903cf677ba834a968b42bd71e4626a9d.dll,#1
2⤵
- Blocklisted process makes network request
PID:1932

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1932-114-0x0000000000000000-mapping.dmp

Download
memory/1932-115-0x0000000074330000-0x000000007447C000-memory.dmp

Filesize
1.3MB

Download
memory/1932-116-0x0000000074330000-0x000000007433F000-memory.dmp

Filesize
60KB

Download
memory/1932-117-0x0000000074330000-0x000000007447C000-memory.dmp

Filesize
1.3MB

Download
memory/1932-118-0x00000000023F0000-0x00000000023F1000-memory.dmp

Filesize
4KB

Download