modiloader | ca57b26526d5989eaf52e85efa942e8b53be8e91e0e20b651a6f9ea28ae0a985

Analysis

max time kernel
36s
max time network
40s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
29/10/2022, 16:16

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General

Target

ca57b26526d5989eaf52e85efa942e8b53be8e91e0e20b651a6f9ea28ae0a985.exe
Size

719KB
MD5

5e86657ccfb7a92420ab314342599b68
SHA1

6cbbf887c77ff70fa3613d79b2ffdcca130570fd
SHA256

ca57b26526d5989eaf52e85efa942e8b53be8e91e0e20b651a6f9ea28ae0a985
SHA512

e875cf6ac24526d56199964a0f226869d540b6b6c8b00a92b94ee5c8dab98bf2f44110cea9cf117bf379dc93529edb0f210d4c10d7146dc9acf8ea4131a18ef2
SSDEEP

12288:6XgPVmsO7H+JeYkZQors8sEyMGXxeGlX4EEPSwDfAmgBJbf8AwnBrRm8dZ/X:AoZ3J78GPX4bEmCb+rRvZ/X

Score

10^/10

modiloader bootkit persistence trojan

Malware Config

Signatures

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

ModiLoader Second Stage 2 IoCs

resource	yara_rule
behavioral2/files/0x0006000000022f77-143.dat	modiloader_stage2
behavioral2/files/0x0006000000022f77-144.dat	modiloader_stage2

Executes dropped EXE 4 IoCs

pid	Process
4896	B85EgtCQKi4p6Z9Kt2.exe
3864	cod.exe
1252	cof.exe
3744	cog.exe

Loads dropped DLL 1 IoCs

pid	Process
4092	rundll32.exe

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-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Txuzixatesuxi = "rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\dendiext.dll\",Startup"	rundll32.exe

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

T1067

description	ioc	Process
File opened for modification	\??\physicaldrive0	cod.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4896	B85EgtCQKi4p6Z9Kt2.exe
4896	B85EgtCQKi4p6Z9Kt2.exe
4896	B85EgtCQKi4p6Z9Kt2.exe
4896	B85EgtCQKi4p6Z9Kt2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3864	cod.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4896	B85EgtCQKi4p6Z9Kt2.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4628 wrote to memory of 4896	4628	ca57b26526d5989eaf52e85efa942e8b53be8e91e0e20b651a6f9ea28ae0a985.exe	80
PID 4628 wrote to memory of 4896	4628	ca57b26526d5989eaf52e85efa942e8b53be8e91e0e20b651a6f9ea28ae0a985.exe	80
PID 4628 wrote to memory of 4896	4628	ca57b26526d5989eaf52e85efa942e8b53be8e91e0e20b651a6f9ea28ae0a985.exe	80
PID 4628 wrote to memory of 3864	4628	ca57b26526d5989eaf52e85efa942e8b53be8e91e0e20b651a6f9ea28ae0a985.exe	81
PID 4628 wrote to memory of 3864	4628	ca57b26526d5989eaf52e85efa942e8b53be8e91e0e20b651a6f9ea28ae0a985.exe	81
PID 4628 wrote to memory of 3864	4628	ca57b26526d5989eaf52e85efa942e8b53be8e91e0e20b651a6f9ea28ae0a985.exe	81
PID 4628 wrote to memory of 1252	4628	ca57b26526d5989eaf52e85efa942e8b53be8e91e0e20b651a6f9ea28ae0a985.exe	82
PID 4628 wrote to memory of 1252	4628	ca57b26526d5989eaf52e85efa942e8b53be8e91e0e20b651a6f9ea28ae0a985.exe	82
PID 4628 wrote to memory of 1252	4628	ca57b26526d5989eaf52e85efa942e8b53be8e91e0e20b651a6f9ea28ae0a985.exe	82
PID 4628 wrote to memory of 3744	4628	ca57b26526d5989eaf52e85efa942e8b53be8e91e0e20b651a6f9ea28ae0a985.exe	83
PID 4628 wrote to memory of 3744	4628	ca57b26526d5989eaf52e85efa942e8b53be8e91e0e20b651a6f9ea28ae0a985.exe	83
PID 4628 wrote to memory of 3744	4628	ca57b26526d5989eaf52e85efa942e8b53be8e91e0e20b651a6f9ea28ae0a985.exe	83
PID 4628 wrote to memory of 1092	4628	ca57b26526d5989eaf52e85efa942e8b53be8e91e0e20b651a6f9ea28ae0a985.exe	84
PID 4628 wrote to memory of 1092	4628	ca57b26526d5989eaf52e85efa942e8b53be8e91e0e20b651a6f9ea28ae0a985.exe	84
PID 4628 wrote to memory of 1092	4628	ca57b26526d5989eaf52e85efa942e8b53be8e91e0e20b651a6f9ea28ae0a985.exe	84
PID 1252 wrote to memory of 4092	1252	cof.exe	86
PID 1252 wrote to memory of 4092	1252	cof.exe	86
PID 1252 wrote to memory of 4092	1252	cof.exe	86

C:\Users\Admin\AppData\Local\Temp\ca57b26526d5989eaf52e85efa942e8b53be8e91e0e20b651a6f9ea28ae0a985.exe
"C:\Users\Admin\AppData\Local\Temp\ca57b26526d5989eaf52e85efa942e8b53be8e91e0e20b651a6f9ea28ae0a985.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4628
- C:\Users\Admin\B85EgtCQKi4p6Z9Kt2.exe
  B85EgtCQKi4p6Z9Kt2.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:4896
- C:\Users\Admin\cod.exe
  cod.exe
  2⤵
  - Executes dropped EXE
  - Writes to the Master Boot Record (MBR)
  - Suspicious use of AdjustPrivilegeToken
  PID:3864
- C:\Users\Admin\cof.exe
  cof.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:1252
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\dendiext.dll",Startup
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    PID:4092
- C:\Users\Admin\cog.exe
  cog.exe
  2⤵
  - Executes dropped EXE
  PID:3744
- C:\Windows\SysWOW64\cmd.exe
  cmd /c del ca57b26526d5989eaf52e85efa942e8b53be8e91e0e20b651a6f9ea28ae0a985.exe
  2⤵
  PID:1092

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\dendiext.dll

Filesize
103KB

MD5
be60099ceffb0aece0bc0c52998e9d65

SHA1
6ff11181390b5eccfb9a832ea5311d58bcc7a3a3

SHA256
e41f195954abff7c7bdc150773ad9f0b4029a883386ac179c1aa9d44f9ab6e4a

SHA512
c4beef5b86370a959b624041cc2db1de2da07a15df17077d728ea74036398fd1e62b6e7e147c53ea944606d751d0934f423b70193ad570a8cba097a823facdc0

Download Submit
C:\Users\Admin\AppData\Local\dendiext.dll

Filesize
103KB

MD5
be60099ceffb0aece0bc0c52998e9d65

SHA1
6ff11181390b5eccfb9a832ea5311d58bcc7a3a3

SHA256
e41f195954abff7c7bdc150773ad9f0b4029a883386ac179c1aa9d44f9ab6e4a

SHA512
c4beef5b86370a959b624041cc2db1de2da07a15df17077d728ea74036398fd1e62b6e7e147c53ea944606d751d0934f423b70193ad570a8cba097a823facdc0

Download Submit
C:\Users\Admin\B85EgtCQKi4p6Z9Kt2.exe

Filesize
152KB

MD5
72e9d71fe7ad21610b846614566d6e2f

SHA1
35071ef247823ff6fa675449c6506caa2f5b145f

SHA256
4dc0b35a38321c71c24289acf43c102e6aa875307f830900d39f25491c83cda9

SHA512
14431710838e2eea0fdb3a7b73743b6d101ec6a4ceebdf0716e2855e845bd2b1722e5178d310a24ce7e5754076a9dc0e62f351c1518c391c6db8533af35203f3

Download Submit
C:\Users\Admin\B85EgtCQKi4p6Z9Kt2.exe

Filesize
152KB

MD5
72e9d71fe7ad21610b846614566d6e2f

SHA1
35071ef247823ff6fa675449c6506caa2f5b145f

SHA256
4dc0b35a38321c71c24289acf43c102e6aa875307f830900d39f25491c83cda9

SHA512
14431710838e2eea0fdb3a7b73743b6d101ec6a4ceebdf0716e2855e845bd2b1722e5178d310a24ce7e5754076a9dc0e62f351c1518c391c6db8533af35203f3

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

Filesize
176KB

MD5
dbadc5fadb7497f5761537c06026ff47

SHA1
c8bd7319e170bd5966a73bae6f34cee4782b4f97

SHA256
b8fdc5c5f8aa378ef3ba8ee5172550a8f7ca295bebe858dab8ec171f1328036e

SHA512
7bced6bbdeb0f770d78f199d16d8ed86e90794141df101d1bb4878c55313af058a5551e0df2da65f6cd3507185cca13c7459aabf97c22faa83518b53321c2b7e

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

Filesize
176KB

MD5
dbadc5fadb7497f5761537c06026ff47

SHA1
c8bd7319e170bd5966a73bae6f34cee4782b4f97

SHA256
b8fdc5c5f8aa378ef3ba8ee5172550a8f7ca295bebe858dab8ec171f1328036e

SHA512
7bced6bbdeb0f770d78f199d16d8ed86e90794141df101d1bb4878c55313af058a5551e0df2da65f6cd3507185cca13c7459aabf97c22faa83518b53321c2b7e

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

Filesize
103KB

MD5
d15f3d9213e5972e1e2c069448d6f228

SHA1
224f67d7bcb15f1921211d68df19a072dc84ccfe

SHA256
9c0e3fcd2615c0a3678e77583970c5d9401ea223db3e517d048453db6427214d

SHA512
3e53dde211235f50f7507839f4f0e8ef6c0456f4f92b40e3a9d57eb64c1ee17774698858213e1cdefb8e87803648ff97001b2a00ad2c2c6b0c896774b1e785e3

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

Filesize
103KB

MD5
d15f3d9213e5972e1e2c069448d6f228

SHA1
224f67d7bcb15f1921211d68df19a072dc84ccfe

SHA256
9c0e3fcd2615c0a3678e77583970c5d9401ea223db3e517d048453db6427214d

SHA512
3e53dde211235f50f7507839f4f0e8ef6c0456f4f92b40e3a9d57eb64c1ee17774698858213e1cdefb8e87803648ff97001b2a00ad2c2c6b0c896774b1e785e3

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

Filesize
145KB

MD5
262a039229f90ba2461f2e810ad74447

SHA1
9dfe5040a3d6ea8262313953c02a1e6ae39c6916

SHA256
e20729c3095a40a637efb304bdf57902cd4948f22406138e0dbdf28f034cedb3

SHA512
d7612cdbc38aea73462aa7851ab3078dfb89a1b4c96414f5d8144c456f694971f08a79bbb1a738ffeb273f99122432b1009cbf4bd483884dd50ca115a64ef641

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

Filesize
145KB

MD5
262a039229f90ba2461f2e810ad74447

SHA1
9dfe5040a3d6ea8262313953c02a1e6ae39c6916

SHA256
e20729c3095a40a637efb304bdf57902cd4948f22406138e0dbdf28f034cedb3

SHA512
d7612cdbc38aea73462aa7851ab3078dfb89a1b4c96414f5d8144c456f694971f08a79bbb1a738ffeb273f99122432b1009cbf4bd483884dd50ca115a64ef641

Download Submit
memory/1252-151-0x00000000021B1000-0x00000000021BF000-memory.dmp

Filesize
56KB

Download
memory/1252-147-0x0000000010000000-0x000000001001D000-memory.dmp

Filesize
116KB

Download
memory/3864-145-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/3864-149-0x00000000009F0000-0x0000000000A48000-memory.dmp

Filesize
352KB

Download
memory/3864-152-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/3864-153-0x00000000009F0000-0x0000000000A48000-memory.dmp

Filesize
352KB

Download
memory/3864-154-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/4092-157-0x0000000010000000-0x000000001001D000-memory.dmp

Filesize
116KB

Download
memory/4092-158-0x0000000000B61000-0x0000000000B6F000-memory.dmp

Filesize
56KB

Download