3a4d839dd867042efff6cc03629ad9a7a4cc6ab55437891161b6fdc48af09cd1

General

Target

SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.exe
Size

1.8MB
MD5

cf0e69a2b8739ddf78c0591882419c94
SHA1

4f674b7c178d58f67b45622300644837ab575bdd
SHA256

3a4d839dd867042efff6cc03629ad9a7a4cc6ab55437891161b6fdc48af09cd1
SHA512

399d3e61532eff0cf1a10b79675dcc83e381585f4400b07b62cade008fd79585a3233f0ce15a2fcdf0b2fbe84fdb72d59f9efc43a188469e87cf8ac25e4361fb

Score

10^/10

persistence spyware

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\dhfn.exe,"	reg.exe

Executes dropped EXE 2 IoCs

Processes:

dhfn.exeInstallUtil.exe

pid process

532 dhfn.exe
1012 InstallUtil.exe
Loads dropped DLL 2 IoCs

Processes:

SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.exedhfn.exe

pid process

740 SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.exe
532 dhfn.exe
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware

Data from Local System
T1005

Credentials in Files
T1081
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
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

5 checkip.dyndns.org
10 freegeoip.app
11 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

dhfn.exe

description pid process target process

PID 532 set thread context of 1012 532 dhfn.exe InstallUtil.exe

pid	process
532	dhfn.exe
1012	InstallUtil.exe

flow	ioc
5	checkip.dyndns.org
10	freegeoip.app
11	freegeoip.app

description	pid	process	target process
PID 532 set thread context of 1012	532	dhfn.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.exedhfn.exeInstallUtil.exe

pid	process
740	SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.exe
740	SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.exe
740	SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.exe
740	SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.exe
740	SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.exe
532	dhfn.exe
532	dhfn.exe
1012	InstallUtil.exe
1012	InstallUtil.exe
1012	InstallUtil.exe
1012	InstallUtil.exe
1012	InstallUtil.exe
1012	InstallUtil.exe
1012	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.exedhfn.exeInstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	740	SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.exe
Token: SeDebugPrivilege	532	dhfn.exe
Token: SeDebugPrivilege	1012	InstallUtil.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.execmd.exedhfn.exe

description	pid	process	target process
PID 740 wrote to memory of 1328	740	SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.exe	cmd.exe
PID 740 wrote to memory of 1328	740	SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.exe	cmd.exe
PID 740 wrote to memory of 1328	740	SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.exe	cmd.exe
PID 740 wrote to memory of 1328	740	SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.exe	cmd.exe
PID 1328 wrote to memory of 1472	1328	cmd.exe	reg.exe
PID 1328 wrote to memory of 1472	1328	cmd.exe	reg.exe
PID 1328 wrote to memory of 1472	1328	cmd.exe	reg.exe
PID 1328 wrote to memory of 1472	1328	cmd.exe	reg.exe
PID 740 wrote to memory of 532	740	SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.exe	dhfn.exe
PID 740 wrote to memory of 532	740	SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.exe	dhfn.exe
PID 740 wrote to memory of 532	740	SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.exe	dhfn.exe
PID 740 wrote to memory of 532	740	SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.exe	dhfn.exe
PID 532 wrote to memory of 1012	532	dhfn.exe	InstallUtil.exe
PID 532 wrote to memory of 1012	532	dhfn.exe	InstallUtil.exe
PID 532 wrote to memory of 1012	532	dhfn.exe	InstallUtil.exe
PID 532 wrote to memory of 1012	532	dhfn.exe	InstallUtil.exe
PID 532 wrote to memory of 1012	532	dhfn.exe	InstallUtil.exe
PID 532 wrote to memory of 1012	532	dhfn.exe	InstallUtil.exe
PID 532 wrote to memory of 1012	532	dhfn.exe	InstallUtil.exe
PID 532 wrote to memory of 1012	532	dhfn.exe	InstallUtil.exe
PID 532 wrote to memory of 1012	532	dhfn.exe	InstallUtil.exe
PID 532 wrote to memory of 1012	532	dhfn.exe	InstallUtil.exe
PID 532 wrote to memory of 1012	532	dhfn.exe	InstallUtil.exe
PID 532 wrote to memory of 1012	532	dhfn.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.505.30555.30634.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:740
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\dhfn.exe,"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1328
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\dhfn.exe,"
    3⤵
    - Modifies WinLogon for persistence
    PID:1472
- C:\Users\Admin\dhfn.exe
  "C:\Users\Admin\dhfn.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:532
- - C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
    "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1012

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\dhfn.exe

MD5
cf0e69a2b8739ddf78c0591882419c94

SHA1
4f674b7c178d58f67b45622300644837ab575bdd

SHA256
3a4d839dd867042efff6cc03629ad9a7a4cc6ab55437891161b6fdc48af09cd1

SHA512
399d3e61532eff0cf1a10b79675dcc83e381585f4400b07b62cade008fd79585a3233f0ce15a2fcdf0b2fbe84fdb72d59f9efc43a188469e87cf8ac25e4361fb

Download Submit
C:\Users\Admin\dhfn.exe

MD5
cf0e69a2b8739ddf78c0591882419c94

SHA1
4f674b7c178d58f67b45622300644837ab575bdd

SHA256
3a4d839dd867042efff6cc03629ad9a7a4cc6ab55437891161b6fdc48af09cd1

SHA512
399d3e61532eff0cf1a10b79675dcc83e381585f4400b07b62cade008fd79585a3233f0ce15a2fcdf0b2fbe84fdb72d59f9efc43a188469e87cf8ac25e4361fb

Download Submit
\Users\Admin\AppData\Local\Temp\InstallUtil.exe

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\dhfn.exe

MD5
cf0e69a2b8739ddf78c0591882419c94

SHA1
4f674b7c178d58f67b45622300644837ab575bdd

SHA256
3a4d839dd867042efff6cc03629ad9a7a4cc6ab55437891161b6fdc48af09cd1

SHA512
399d3e61532eff0cf1a10b79675dcc83e381585f4400b07b62cade008fd79585a3233f0ce15a2fcdf0b2fbe84fdb72d59f9efc43a188469e87cf8ac25e4361fb

Download Submit
memory/532-13-0x0000000074CC0000-0x00000000753AE000-memory.dmp

Filesize
6.9MB

Download
memory/532-14-0x0000000000A40000-0x0000000000A41000-memory.dmp

Filesize
4KB

Download
memory/532-19-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/532-18-0x00000000004D0000-0x00000000004DB000-memory.dmp

Filesize
44KB

Download
memory/532-10-0x0000000000000000-mapping.dmp

Download
memory/740-2-0x0000000074CC0000-0x00000000753AE000-memory.dmp

Filesize
6.9MB

Download
memory/740-6-0x0000000000630000-0x0000000000631000-memory.dmp

Filesize
4KB

Download
memory/740-5-0x0000000000280000-0x000000000029E000-memory.dmp

Filesize
120KB

Download
memory/740-3-0x0000000000950000-0x0000000000951000-memory.dmp

Filesize
4KB

Download
memory/1012-22-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1012-23-0x000000000046373E-mapping.dmp

Download
memory/1012-25-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1012-26-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1012-27-0x0000000074CC0000-0x00000000753AE000-memory.dmp

Filesize
6.9MB

Download
memory/1328-7-0x0000000000000000-mapping.dmp

Download
memory/1472-8-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads