gozi | cb215014f6bf97e1e48c57964e2f66b26f5aa24dc91760c06618a74b1feee118

General

Target

f99497128b2306c71806f8290cdcd0b3_JaffaCakes118.exe
Size

14KB
MD5

f99497128b2306c71806f8290cdcd0b3
SHA1

e2ac260d6329fc4f20c343aca73023de88a523e0
SHA256

cb215014f6bf97e1e48c57964e2f66b26f5aa24dc91760c06618a74b1feee118
SHA512

67f1dcbfb7091d0ab7b55812241d909b6c1ea4b50698fe6b789b5df99f9cd0aa193e167c36cb6e7013c13b74b69c8d37117d68cea4e88802a2e6c4d0c80a762c
SSDEEP

192:zawE9e6BACdbQstv7U8vAzN7aVD1xWdj7cEhvM5I21PN1PYIm4bT6aImYpTMmP2:zd/wbp8z4Kd/cEhvMfaIhqoCTJAzM

Score

10^/10

gozi banker discovery isfb persistence privilege_escalation trojan upx

Malware Config

Extracted

Family

gozi

Signatures

Gozi
Gozi is a well-known and widely distributed banking trojan.
banker trojan gozi
Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Deletes itself 1 IoCs

pid	Process
2740	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1020	mssetdk.exe

Loads dropped DLL 2 IoCs

pid	Process
3048	f99497128b2306c71806f8290cdcd0b3_JaffaCakes118.exe
3048	f99497128b2306c71806f8290cdcd0b3_JaffaCakes118.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\mssetd.dll	f99497128b2306c71806f8290cdcd0b3_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\mssetdk.exe	f99497128b2306c71806f8290cdcd0b3_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\mssetdk.exe	f99497128b2306c71806f8290cdcd0b3_JaffaCakes118.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/3048-0-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/files/0x0007000000018705-3.dat	upx
behavioral1/memory/3048-11-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/1020-14-0x0000000000400000-0x0000000000411000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f99497128b2306c71806f8290cdcd0b3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 1020	3048	f99497128b2306c71806f8290cdcd0b3_JaffaCakes118.exe	29
PID 3048 wrote to memory of 1020	3048	f99497128b2306c71806f8290cdcd0b3_JaffaCakes118.exe	29
PID 3048 wrote to memory of 1020	3048	f99497128b2306c71806f8290cdcd0b3_JaffaCakes118.exe	29
PID 3048 wrote to memory of 1020	3048	f99497128b2306c71806f8290cdcd0b3_JaffaCakes118.exe	29
PID 3048 wrote to memory of 2740	3048	f99497128b2306c71806f8290cdcd0b3_JaffaCakes118.exe	30
PID 3048 wrote to memory of 2740	3048	f99497128b2306c71806f8290cdcd0b3_JaffaCakes118.exe	30
PID 3048 wrote to memory of 2740	3048	f99497128b2306c71806f8290cdcd0b3_JaffaCakes118.exe	30
PID 3048 wrote to memory of 2740	3048	f99497128b2306c71806f8290cdcd0b3_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\f99497128b2306c71806f8290cdcd0b3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f99497128b2306c71806f8290cdcd0b3_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Windows\SysWOW64\mssetdk.exe
  C:\Windows\system32\mssetdk.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:1020
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\f99497128b2306c71806f8290cdcd0b3_JaffaCakes118.exe.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Privilege Escalation

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\f99497128b2306c71806f8290cdcd0b3_JaffaCakes118.exe.bat

Filesize
210B

MD5
7eea3232886337474b3341afb43f6a41

SHA1
586e8d6c6979f85fb203c364a0fe3a5a0aaf8b34

SHA256
111026c7b035ff127cbb455b04af04e35226e0942b9617761c7aec97cf8a82bb

SHA512
667487f267c76699beafc5d46ac9222d75ea2b851bf5f294d98226ad5dbf0f27d8e08bb25c43674fb00324dafe8d9e4645500d0a3f3839e93effe5f96b3f70b6

Download Submit
\Windows\SysWOW64\mssetdk.exe

Filesize
14KB

MD5
f99497128b2306c71806f8290cdcd0b3

SHA1
e2ac260d6329fc4f20c343aca73023de88a523e0

SHA256
cb215014f6bf97e1e48c57964e2f66b26f5aa24dc91760c06618a74b1feee118

SHA512
67f1dcbfb7091d0ab7b55812241d909b6c1ea4b50698fe6b789b5df99f9cd0aa193e167c36cb6e7013c13b74b69c8d37117d68cea4e88802a2e6c4d0c80a762c

Download Submit
memory/1020-14-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/3048-0-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/3048-9-0x00000000001C0000-0x00000000001D1000-memory.dmp

Filesize
68KB

Download
memory/3048-11-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/3048-12-0x00000000001C0000-0x00000000001D1000-memory.dmp

Filesize
68KB

Download

Analysis

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