gozi_ifsb | ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa

General

Target

ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa.exe
Size

365KB
MD5

8f8fa2a30b7831c675f46d73797cb82d
SHA1

8ba2af9608ed6d56a415704bda042e30c8af79c0
SHA256

ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa
SHA512

9211d48db1035d568af288daf50fde2b56aec8e8945bbda28098cbc2175a6665895676a5c999039cce93302d26ac2b032720c71c35610c56086c01a84d1f6452

Score

10^/10

gozi_ifsb ursnif banker persistence spyware trojan

Malware Config

Extracted

Family

ursnif

Attributes

dga_base_url
dga_crc
0
dga_season
0
dga_tlds
dns_servers

Signatures

Gozi, Gozi IFSB
Gozi ISFB is a well-known and widely distributed banking trojan.
banker trojan gozi_ifsb
Ursnif, Dreambot
Ursnif is a variant of the Gozi IFSB with more capabilities.
banker trojan ursnif
Executes dropped EXE 1 IoCs

Processes:

Callmuid.exe

pid process

532 Callmuid.exe
Deletes itself 1 IoCs

Processes:

Callmuid.exe

pid process

532 Callmuid.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

pid	process
532	Callmuid.exe

pid	process
532	Callmuid.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\acmiager = "C:\\Users\\Admin\\AppData\\Roaming\\Certmcat\\Callmuid.exe"	ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

Callmuid.exesvchost.exeExplorer.EXE

description	pid	process	target process
PID 532 set thread context of 680	532	Callmuid.exe	svchost.exe
PID 680 set thread context of 3152	680	svchost.exe	Explorer.EXE
PID 3152 set thread context of 3720	3152	Explorer.EXE	RuntimeBroker.exe
PID 3152 set thread context of 2044	3152	Explorer.EXE	WinMail.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Callmuid.exeExplorer.EXE

pid process

532 Callmuid.exe
532 Callmuid.exe
3152 Explorer.EXE
3152 Explorer.EXE
Suspicious behavior: MapViewOfSection 4 IoCs

Processes:

Callmuid.exesvchost.exeExplorer.EXE

pid process

532 Callmuid.exe
680 svchost.exe
3152 Explorer.EXE
3152 Explorer.EXE
Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

3152 Explorer.EXE

pid	process
532	Callmuid.exe
532	Callmuid.exe
3152	Explorer.EXE
3152	Explorer.EXE

pid	process
532	Callmuid.exe
680	svchost.exe
3152	Explorer.EXE
3152	Explorer.EXE

pid	process
3152	Explorer.EXE

Suspicious use of WriteProcessMemory 31 IoCs

Processes:

ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa.execmd.execmd.exeCallmuid.exesvchost.exeExplorer.EXEcmd.exe

description	pid	process	target process
PID 4800 wrote to memory of 4308	4800	ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa.exe	cmd.exe
PID 4800 wrote to memory of 4308	4800	ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa.exe	cmd.exe
PID 4800 wrote to memory of 4308	4800	ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa.exe	cmd.exe
PID 4308 wrote to memory of 3284	4308	cmd.exe	cmd.exe
PID 4308 wrote to memory of 3284	4308	cmd.exe	cmd.exe
PID 4308 wrote to memory of 3284	4308	cmd.exe	cmd.exe
PID 3284 wrote to memory of 532	3284	cmd.exe	Callmuid.exe
PID 3284 wrote to memory of 532	3284	cmd.exe	Callmuid.exe
PID 3284 wrote to memory of 532	3284	cmd.exe	Callmuid.exe
PID 532 wrote to memory of 680	532	Callmuid.exe	svchost.exe
PID 532 wrote to memory of 680	532	Callmuid.exe	svchost.exe
PID 532 wrote to memory of 680	532	Callmuid.exe	svchost.exe
PID 532 wrote to memory of 680	532	Callmuid.exe	svchost.exe
PID 532 wrote to memory of 680	532	Callmuid.exe	svchost.exe
PID 680 wrote to memory of 3152	680	svchost.exe	Explorer.EXE
PID 680 wrote to memory of 3152	680	svchost.exe	Explorer.EXE
PID 680 wrote to memory of 3152	680	svchost.exe	Explorer.EXE
PID 3152 wrote to memory of 3720	3152	Explorer.EXE	RuntimeBroker.exe
PID 3152 wrote to memory of 3720	3152	Explorer.EXE	RuntimeBroker.exe
PID 3152 wrote to memory of 3720	3152	Explorer.EXE	RuntimeBroker.exe
PID 3152 wrote to memory of 1344	3152	Explorer.EXE	cmd.exe
PID 3152 wrote to memory of 1344	3152	Explorer.EXE	cmd.exe
PID 1344 wrote to memory of 1592	1344	cmd.exe	nslookup.exe
PID 1344 wrote to memory of 1592	1344	cmd.exe	nslookup.exe
PID 3152 wrote to memory of 1680	3152	Explorer.EXE	cmd.exe
PID 3152 wrote to memory of 1680	3152	Explorer.EXE	cmd.exe
PID 3152 wrote to memory of 2044	3152	Explorer.EXE	WinMail.exe
PID 3152 wrote to memory of 2044	3152	Explorer.EXE	WinMail.exe
PID 3152 wrote to memory of 2044	3152	Explorer.EXE	WinMail.exe
PID 3152 wrote to memory of 2044	3152	Explorer.EXE	WinMail.exe
PID 3152 wrote to memory of 2044	3152	Explorer.EXE	WinMail.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3152
- C:\Users\Admin\AppData\Local\Temp\ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa.exe
  "C:\Users\Admin\AppData\Local\Temp\ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:4800
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\FFE6\7FF3.bat" "C:\Users\Admin\AppData\Roaming\Certmcat\Callmuid.exe" "C:\Users\Admin\AppData\Local\Temp\EE1217~1.EXE""
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4308
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /C ""C:\Users\Admin\AppData\Roaming\Certmcat\Callmuid.exe" "C:\Users\Admin\AppData\Local\Temp\EE1217~1.EXE""
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3284
    - - C:\Users\Admin\AppData\Roaming\Certmcat\Callmuid.exe
        
        "C:\Users\Admin\AppData\Roaming\Certmcat\Callmuid.exe" "C:\Users\Admin\AppData\Local\Temp\EE1217~1.EXE"
        5⤵
        Executes dropped EXE
        Deletes itself
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of WriteProcessMemory
        
        PID:532
      - C:\Windows\system32\svchost.exe
        
        C:\Windows\system32\svchost.exe
        6⤵
        Suspicious use of SetThreadContext
        Suspicious behavior: MapViewOfSection
        Suspicious use of WriteProcessMemory
        
        PID:680
- C:\Windows\system32\cmd.exe
  cmd /C "nslookup myip.opendns.com resolver1.opendns.com > C:\Users\Admin\AppData\Local\Temp\2A68.bi1"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1344
- - C:\Windows\system32\nslookup.exe
    nslookup myip.opendns.com resolver1.opendns.com
    3⤵
    PID:1592
- C:\Windows\system32\cmd.exe
  cmd /C "echo -------- >> C:\Users\Admin\AppData\Local\Temp\2A68.bi1"
  2⤵
  PID:1680
- C:\Program Files\Windows Mail\WinMail.exe
  "C:\Program Files\Windows Mail\WinMail" OCInstallUserConfigOE
  2⤵
  PID:2044

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3720

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

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\2A68.bi1

MD5
c4f77466fa6bb3b7b587745fd51eb73e

SHA1
c9ee49b895e2cec4483b9e3d84e32f0d650edcbb

SHA256
37d5f9a9a4db772e5bcc6a0211a3092049c09f438067bc36cde152e10b79eeb8

SHA512
51c1ddeac48567d106cbcc5bad19b31639b73ec66d11ed83dbc90da880792df0b6bd6c6e28a712e854ceeb6bd96a3985e521cb9d666b0ccd087e96f4a90fc7d7

Download Submit
C:\Users\Admin\AppData\Local\Temp\2A68.bi1

MD5
c4f77466fa6bb3b7b587745fd51eb73e

SHA1
c9ee49b895e2cec4483b9e3d84e32f0d650edcbb

SHA256
37d5f9a9a4db772e5bcc6a0211a3092049c09f438067bc36cde152e10b79eeb8

SHA512
51c1ddeac48567d106cbcc5bad19b31639b73ec66d11ed83dbc90da880792df0b6bd6c6e28a712e854ceeb6bd96a3985e521cb9d666b0ccd087e96f4a90fc7d7

Download Submit
C:\Users\Admin\AppData\Local\Temp\FFE6\7FF3.bat

MD5
597694a73edff4edffa33881fe6bb68c

SHA1
30c03a6e84bf985d7790bf8f2a930d332d27f392

SHA256
e264c20f734cc1b6fd9f0580f917c0030afc719e164bb5c6ef9e2aaaa376136e

SHA512
b90a1109ba69b703ad772682ecb5cae5a4ac03828dff2e79e7d7d80acc190a472d11957c2fd73c7aa01a16598db4a03ea27fa8c0c5b852712d7e42a9c9389dd9

Download Submit
C:\Users\Admin\AppData\Roaming\Certmcat\Callmuid.exe

MD5
8f8fa2a30b7831c675f46d73797cb82d

SHA1
8ba2af9608ed6d56a415704bda042e30c8af79c0

SHA256
ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa

SHA512
9211d48db1035d568af288daf50fde2b56aec8e8945bbda28098cbc2175a6665895676a5c999039cce93302d26ac2b032720c71c35610c56086c01a84d1f6452

Download Submit
C:\Users\Admin\AppData\Roaming\Certmcat\Callmuid.exe

MD5
8f8fa2a30b7831c675f46d73797cb82d

SHA1
8ba2af9608ed6d56a415704bda042e30c8af79c0

SHA256
ee12174421fe88e3d229a3ceeb79d46695c837cbe6b395ff60bbfed3944fc4fa

SHA512
9211d48db1035d568af288daf50fde2b56aec8e8945bbda28098cbc2175a6665895676a5c999039cce93302d26ac2b032720c71c35610c56086c01a84d1f6452

Download Submit
memory/532-7-0x0000000002AF0000-0x0000000002B7F000-memory.dmp

Filesize
572KB

Download
memory/532-3-0x0000000000000000-mapping.dmp

Download
memory/680-6-0x0000000000000000-mapping.dmp

Download
memory/680-8-0x0000003662BA6000-mapping.dmp

Download
memory/680-9-0x00000000009F0000-0x0000000000A25000-memory.dmp

Filesize
212KB

Download
memory/680-10-0x00000159B4200000-0x00000159B428F000-memory.dmp

Filesize
572KB

Download
memory/1344-12-0x0000000000000000-mapping.dmp

Download
memory/1592-13-0x0000000000000000-mapping.dmp

Download
memory/1680-14-0x0000000000000000-mapping.dmp

Download
memory/2044-17-0x0000000000000000-mapping.dmp

Download
memory/2044-19-0x0000001DE491D000-mapping.dmp

Download
memory/2044-20-0x000001FEE3510000-0x000001FEE3545000-memory.dmp

Filesize
212KB

Download
memory/3152-11-0x0000000004DA0000-0x0000000004E2F000-memory.dmp

Filesize
572KB

Download
memory/3152-18-0x0000000004DA0000-0x0000000004E2F000-memory.dmp

Filesize
572KB

Download
memory/3284-2-0x0000000000000000-mapping.dmp

Download
memory/4308-0-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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