modiloader | ee3e04171308b5c8fae57344a095285e83c10b942745f27f4696a01cd2b16678

General

Target

$TEMP/vaysoft-image-to-exe-converter-4.52.exe
Size

1.8MB
MD5

6ce9644cb6b649e61afaa8d79de40bf0
SHA1

a8b1ea2c5dd283fd7f889a58fb0dc087e4e2736a
SHA256

935225e6b0f68e3891f9d0f16f433a7673c5ecdc6a02fc8857bb1a6460492254
SHA512

e1db0d224de89a5a06bfc6ffc81320f5b20b2bff32ad4a61c0d70f607a6baafeadb6c33690c0246a2c84c129cfa0f4f8e3d72f5234414ef48dc615a722bd33c2
SSDEEP

49152:v2bno1q2wSvFPaBPpCiPRFbnPjTtwdxu5pUxHDp4ZW/VwbIaV:ubnoI29FIginHtExjhmM/Cb5

Score

10^/10

modiloader bootkit discovery persistence trojan

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
Modiloader family
modiloader

ModiLoader Second Stage 2 IoCs

resource	yara_rule
behavioral5/files/0x00050000000186f2-32.dat	modiloader_stage2
behavioral5/memory/2848-68-0x0000000000400000-0x0000000000648000-memory.dmp	modiloader_stage2

Executes dropped EXE 2 IoCs

pid	Process
2388	vaysoft-image-to-exe-converter-4.52.tmp
2848	imagetoexe.exe

Loads dropped DLL 7 IoCs

pid	Process
340	vaysoft-image-to-exe-converter-4.52.exe
2388	vaysoft-image-to-exe-converter-4.52.tmp
2388	vaysoft-image-to-exe-converter-4.52.tmp
2388	vaysoft-image-to-exe-converter-4.52.tmp
2388	vaysoft-image-to-exe-converter-4.52.tmp
2388	vaysoft-image-to-exe-converter-4.52.tmp
2388	vaysoft-image-to-exe-converter-4.52.tmp

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	imagetoexe.exe

Drops file in Program Files directory 7 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\VaySoft\VaySoft Image to EXE Converter\unins000.dat	vaysoft-image-to-exe-converter-4.52.tmp
File created	C:\Program Files (x86)\VaySoft\VaySoft Image to EXE Converter\unins000.dat	vaysoft-image-to-exe-converter-4.52.tmp
File created	C:\Program Files (x86)\VaySoft\VaySoft Image to EXE Converter\is-0AUCI.tmp	vaysoft-image-to-exe-converter-4.52.tmp
File created	C:\Program Files (x86)\VaySoft\VaySoft Image to EXE Converter\is-S56OE.tmp	vaysoft-image-to-exe-converter-4.52.tmp
File created	C:\Program Files (x86)\VaySoft\VaySoft Image to EXE Converter\is-MK833.tmp	vaysoft-image-to-exe-converter-4.52.tmp
File created	C:\Program Files (x86)\VaySoft\VaySoft Image to EXE Converter\is-2HC4L.tmp	vaysoft-image-to-exe-converter-4.52.tmp
File created	C:\Program Files (x86)\VaySoft\VaySoft Image to EXE Converter\is-HGR9L.tmp	vaysoft-image-to-exe-converter-4.52.tmp

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	vaysoft-image-to-exe-converter-4.52.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vaysoft-image-to-exe-converter-4.52.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	imagetoexe.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2848	imagetoexe.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 340 wrote to memory of 2388	340	vaysoft-image-to-exe-converter-4.52.exe	30
PID 340 wrote to memory of 2388	340	vaysoft-image-to-exe-converter-4.52.exe	30
PID 340 wrote to memory of 2388	340	vaysoft-image-to-exe-converter-4.52.exe	30
PID 340 wrote to memory of 2388	340	vaysoft-image-to-exe-converter-4.52.exe	30
PID 340 wrote to memory of 2388	340	vaysoft-image-to-exe-converter-4.52.exe	30
PID 340 wrote to memory of 2388	340	vaysoft-image-to-exe-converter-4.52.exe	30
PID 340 wrote to memory of 2388	340	vaysoft-image-to-exe-converter-4.52.exe	30
PID 2388 wrote to memory of 2848	2388	vaysoft-image-to-exe-converter-4.52.tmp	32
PID 2388 wrote to memory of 2848	2388	vaysoft-image-to-exe-converter-4.52.tmp	32
PID 2388 wrote to memory of 2848	2388	vaysoft-image-to-exe-converter-4.52.tmp	32
PID 2388 wrote to memory of 2848	2388	vaysoft-image-to-exe-converter-4.52.tmp	32

C:\Users\Admin\AppData\Local\Temp\$TEMP\vaysoft-image-to-exe-converter-4.52.exe
"C:\Users\Admin\AppData\Local\Temp\$TEMP\vaysoft-image-to-exe-converter-4.52.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:340
- C:\Users\Admin\AppData\Local\Temp\is-V5I3K.tmp\vaysoft-image-to-exe-converter-4.52.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-V5I3K.tmp\vaysoft-image-to-exe-converter-4.52.tmp" /SL5="$30144,1697600,53248,C:\Users\Admin\AppData\Local\Temp\$TEMP\vaysoft-image-to-exe-converter-4.52.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2388
- - C:\Program Files (x86)\VaySoft\VaySoft Image to EXE Converter\imagetoexe.exe
    "C:\Program Files (x86)\VaySoft\VaySoft Image to EXE Converter\imagetoexe.exe"
    3⤵
    - Executes dropped EXE
    - Writes to the Master Boot Record (MBR)
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2848

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Program Files (x86)\VaySoft\VaySoft Image to EXE Converter\imagetoexe.exe

Filesize
2.3MB

MD5
2a3e3d4612ee5253df73afe5483cd53d

SHA1
f52b0a65d2fce52d543705c62a063220a91c496c

SHA256
2c23689bddb2eb08efd94e7e319adafa58d5d9ec00b71e4a5519e7797ed41854

SHA512
b49b733183032769ae58c972b280a286457f6297b79a83078af586561110c1035af965f42418ee6287647afb9bf7e24ff58758b30f5b02f6bcd1d7e4621ca041

Download Submit
\Program Files (x86)\VaySoft\VaySoft Image to EXE Converter\unins000.exe

Filesize
679KB

MD5
980de92df387ddd01c71254edec672e4

SHA1
be513ab47d0896ede95506ed85352667445bf050

SHA256
8f2f0c3ffc0bb50652052e580f49a7bf647ae879caa4e308d30a74b81a1fe341

SHA512
2cd75c7679787cf7a1f7e012c8c961f0a22e6a91361c2b3d489fbcfaa9dfe4bec23035935ffadb8161a2f9839424a26c31486087c60c68bdba7ef8f544cd73c6

Download Submit
\Users\Admin\AppData\Local\Temp\is-HGF87.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-V5I3K.tmp\vaysoft-image-to-exe-converter-4.52.tmp

Filesize
669KB

MD5
52950ac9e2b481453082f096120e355a

SHA1
159c09db1abcee9114b4f792ffba255c78a6e6c3

SHA256
25fbc88c7c967266f041ae4d47c2eae0b96086f9e440cca10729103aee7ef6cd

SHA512
5b61c28bbcaedadb3b6cd3bb8a392d18016c354c4c16e01395930666addc95994333dfc45bea1a1844f6f1585e79c729136d3714ac118b5848becde0bdb182ba

Download Submit
memory/340-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/340-17-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/340-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/340-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2388-12-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/2388-18-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/2388-20-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/2388-45-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/2388-57-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/2848-68-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads