gozi_ifsb | 02d165251fbb673606e8c48754a9d5e4682317b5a277e71ad541d252e107aa74

General

Target

02d165251fbb673606e8c48754a9d5e4682317b5a277e71ad541d252e107aa74.exe
Size

273KB
MD5

7f1d3c53b9ec4e4a0de133e294c59503
SHA1

0a5cf542342a579a2da13fe81f2a33e8beb2dd53
SHA256

02d165251fbb673606e8c48754a9d5e4682317b5a277e71ad541d252e107aa74
SHA512

38693beb421aa4b18de14edc82a360e437e3269003ac94322f2cd34ce9a6c8cd4ee4d5d3fec785f36e752b7e6bd8f2a62a95988282240181d24f0f3341897486

Score

10^/10

gozi_ifsb ursnif banker persistence spyware trojan upx

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

pid	Process
1724	aecahell.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x00040000000130ca-3.dat	upx
behavioral1/files/0x00040000000130ca-4.dat	upx
behavioral1/files/0x00040000000130ca-6.dat	upx

Deletes itself 1 IoCs

pid	Process
1724	aecahell.exe

Loads dropped DLL 1 IoCs

pid	Process
608	cmd.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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\deskintf = "C:\\Users\\Admin\\AppData\\Roaming\\authCore\\aecahell.exe"	02d165251fbb673606e8c48754a9d5e4682317b5a277e71ad541d252e107aa74.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1724 set thread context of 1708	1724	aecahell.exe	31
PID 1708 set thread context of 1236	1708	svchost.exe	21

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1724	aecahell.exe
1236	Explorer.EXE

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1724	aecahell.exe
1708	svchost.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1236	Explorer.EXE
1236	Explorer.EXE
1236	Explorer.EXE
1236	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1236	Explorer.EXE
1236	Explorer.EXE
1236	Explorer.EXE
1236	Explorer.EXE

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1236	Explorer.EXE

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1080 wrote to memory of 1220	1080	02d165251fbb673606e8c48754a9d5e4682317b5a277e71ad541d252e107aa74.exe	27
PID 1080 wrote to memory of 1220	1080	02d165251fbb673606e8c48754a9d5e4682317b5a277e71ad541d252e107aa74.exe	27
PID 1080 wrote to memory of 1220	1080	02d165251fbb673606e8c48754a9d5e4682317b5a277e71ad541d252e107aa74.exe	27
PID 1080 wrote to memory of 1220	1080	02d165251fbb673606e8c48754a9d5e4682317b5a277e71ad541d252e107aa74.exe	27
PID 1220 wrote to memory of 608	1220	cmd.exe	29
PID 1220 wrote to memory of 608	1220	cmd.exe	29
PID 1220 wrote to memory of 608	1220	cmd.exe	29
PID 1220 wrote to memory of 608	1220	cmd.exe	29
PID 608 wrote to memory of 1724	608	cmd.exe	30
PID 608 wrote to memory of 1724	608	cmd.exe	30
PID 608 wrote to memory of 1724	608	cmd.exe	30
PID 608 wrote to memory of 1724	608	cmd.exe	30
PID 1724 wrote to memory of 1708	1724	aecahell.exe	31
PID 1724 wrote to memory of 1708	1724	aecahell.exe	31
PID 1724 wrote to memory of 1708	1724	aecahell.exe	31
PID 1724 wrote to memory of 1708	1724	aecahell.exe	31
PID 1724 wrote to memory of 1708	1724	aecahell.exe	31
PID 1724 wrote to memory of 1708	1724	aecahell.exe	31
PID 1724 wrote to memory of 1708	1724	aecahell.exe	31
PID 1708 wrote to memory of 1236	1708	svchost.exe	21
PID 1708 wrote to memory of 1236	1708	svchost.exe	21
PID 1708 wrote to memory of 1236	1708	svchost.exe	21

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:1236
- C:\Users\Admin\AppData\Local\Temp\02d165251fbb673606e8c48754a9d5e4682317b5a277e71ad541d252e107aa74.exe
  "C:\Users\Admin\AppData\Local\Temp\02d165251fbb673606e8c48754a9d5e4682317b5a277e71ad541d252e107aa74.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:1080
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\B5F8\5AFC.bat" "C:\Users\Admin\AppData\Roaming\authCore\aecahell.exe" "C:\Users\Admin\AppData\Local\Temp\02D165~1.EXE""
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1220
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /C ""C:\Users\Admin\AppData\Roaming\authCore\aecahell.exe" "C:\Users\Admin\AppData\Local\Temp\02D165~1.EXE""
      4⤵
      Loads dropped DLL
      Suspicious use of WriteProcessMemory
      PID:608
    - - C:\Users\Admin\AppData\Roaming\authCore\aecahell.exe
        
        "C:\Users\Admin\AppData\Roaming\authCore\aecahell.exe" "C:\Users\Admin\AppData\Local\Temp\02D165~1.EXE"
        5⤵
        Executes dropped EXE
        Deletes itself
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of WriteProcessMemory
        
        PID:1724
      - C:\Windows\system32\svchost.exe
        
        C:\Windows\system32\svchost.exe
        6⤵
        Suspicious use of SetThreadContext
        Suspicious behavior: MapViewOfSection
        Suspicious use of WriteProcessMemory
        
        PID:1708

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

Replay Monitor

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Downloads

memory/560-10-0x000007FEF7800000-0x000007FEF7A7A000-memory.dmp

Filesize
2.5MB

Download
memory/1708-11-0x0000000002620000-0x00000000026B6000-memory.dmp

Filesize
600KB

Download
memory/1724-8-0x0000000000460000-0x00000000004F6000-memory.dmp

Filesize
600KB

Download

Analysis

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