modiloader | fd9a8467506879fac5cfaf5bca7a4ae10d49015b2f4ccafd41438fe0ebbf2fba

Analysis

max time kernel
26s
max time network
29s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
24/11/2022, 00:12

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General

Target

fd9a8467506879fac5cfaf5bca7a4ae10d49015b2f4ccafd41438fe0ebbf2fba.exe
Size

719KB
MD5

020fb37eae21fae4c94af545c4b3a1b6
SHA1

542686efe786a98f5b380905551cb48193e9640f
SHA256

fd9a8467506879fac5cfaf5bca7a4ae10d49015b2f4ccafd41438fe0ebbf2fba
SHA512

73fd9ee65ab6bd9173a4d07078fc6638d062d85bbdebd3fa30420b9a90f8b2dcb125ade4449235afc56e8010bae293ab5dc384f6fec57a4cb57e03b212995ddd
SSDEEP

12288:6XgPVmsO7H+JeYkZQors8sEyMGXxeHlX4EEPSwDfAmgBJbf8AwnBrRm8dZ/X:AoZ3J78GwX4bEmCb+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 3 IoCs

resource	yara_rule
behavioral2/files/0x0002000000022df6-145.dat	modiloader_stage2
behavioral2/files/0x0002000000022df6-144.dat	modiloader_stage2
behavioral2/files/0x0002000000022df6-164.dat	modiloader_stage2

Executes dropped EXE 5 IoCs

pid	Process
4616	B85EgtCQKi4p6Z9Kt2.exe
2704	cod.exe
4800	cof.exe
4260	cog.exe
2460	cog.exe

Loads dropped DLL 1 IoCs

pid	Process
2444	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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Tnefeyogomusigeg = "rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Wimfck.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 use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4260 set thread context of 2460	4260	cog.exe	88

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 40 IoCs

pid	Process
4616	B85EgtCQKi4p6Z9Kt2.exe
4616	B85EgtCQKi4p6Z9Kt2.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
4616	B85EgtCQKi4p6Z9Kt2.exe
4616	B85EgtCQKi4p6Z9Kt2.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe
2460	cog.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2704	cod.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4616	B85EgtCQKi4p6Z9Kt2.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2804 wrote to memory of 4616	2804	fd9a8467506879fac5cfaf5bca7a4ae10d49015b2f4ccafd41438fe0ebbf2fba.exe	81
PID 2804 wrote to memory of 4616	2804	fd9a8467506879fac5cfaf5bca7a4ae10d49015b2f4ccafd41438fe0ebbf2fba.exe	81
PID 2804 wrote to memory of 4616	2804	fd9a8467506879fac5cfaf5bca7a4ae10d49015b2f4ccafd41438fe0ebbf2fba.exe	81
PID 2804 wrote to memory of 2704	2804	fd9a8467506879fac5cfaf5bca7a4ae10d49015b2f4ccafd41438fe0ebbf2fba.exe	82
PID 2804 wrote to memory of 2704	2804	fd9a8467506879fac5cfaf5bca7a4ae10d49015b2f4ccafd41438fe0ebbf2fba.exe	82
PID 2804 wrote to memory of 2704	2804	fd9a8467506879fac5cfaf5bca7a4ae10d49015b2f4ccafd41438fe0ebbf2fba.exe	82
PID 2804 wrote to memory of 4800	2804	fd9a8467506879fac5cfaf5bca7a4ae10d49015b2f4ccafd41438fe0ebbf2fba.exe	83
PID 2804 wrote to memory of 4800	2804	fd9a8467506879fac5cfaf5bca7a4ae10d49015b2f4ccafd41438fe0ebbf2fba.exe	83
PID 2804 wrote to memory of 4800	2804	fd9a8467506879fac5cfaf5bca7a4ae10d49015b2f4ccafd41438fe0ebbf2fba.exe	83
PID 2804 wrote to memory of 4260	2804	fd9a8467506879fac5cfaf5bca7a4ae10d49015b2f4ccafd41438fe0ebbf2fba.exe	84
PID 2804 wrote to memory of 4260	2804	fd9a8467506879fac5cfaf5bca7a4ae10d49015b2f4ccafd41438fe0ebbf2fba.exe	84
PID 2804 wrote to memory of 4260	2804	fd9a8467506879fac5cfaf5bca7a4ae10d49015b2f4ccafd41438fe0ebbf2fba.exe	84
PID 2804 wrote to memory of 2708	2804	fd9a8467506879fac5cfaf5bca7a4ae10d49015b2f4ccafd41438fe0ebbf2fba.exe	85
PID 2804 wrote to memory of 2708	2804	fd9a8467506879fac5cfaf5bca7a4ae10d49015b2f4ccafd41438fe0ebbf2fba.exe	85
PID 2804 wrote to memory of 2708	2804	fd9a8467506879fac5cfaf5bca7a4ae10d49015b2f4ccafd41438fe0ebbf2fba.exe	85
PID 4800 wrote to memory of 2444	4800	cof.exe	86
PID 4800 wrote to memory of 2444	4800	cof.exe	86
PID 4800 wrote to memory of 2444	4800	cof.exe	86
PID 4260 wrote to memory of 2460	4260	cog.exe	88
PID 4260 wrote to memory of 2460	4260	cog.exe	88
PID 4260 wrote to memory of 2460	4260	cog.exe	88
PID 4260 wrote to memory of 2460	4260	cog.exe	88
PID 4260 wrote to memory of 2460	4260	cog.exe	88
PID 4260 wrote to memory of 2460	4260	cog.exe	88
PID 4260 wrote to memory of 2460	4260	cog.exe	88
PID 4260 wrote to memory of 2460	4260	cog.exe	88
PID 4260 wrote to memory of 2460	4260	cog.exe	88
PID 4260 wrote to memory of 2460	4260	cog.exe	88

C:\Users\Admin\AppData\Local\Temp\fd9a8467506879fac5cfaf5bca7a4ae10d49015b2f4ccafd41438fe0ebbf2fba.exe
"C:\Users\Admin\AppData\Local\Temp\fd9a8467506879fac5cfaf5bca7a4ae10d49015b2f4ccafd41438fe0ebbf2fba.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2804
- C:\Users\Admin\B85EgtCQKi4p6Z9Kt2.exe
  B85EgtCQKi4p6Z9Kt2.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:4616
- C:\Users\Admin\cod.exe
  cod.exe
  2⤵
  - Executes dropped EXE
  - Writes to the Master Boot Record (MBR)
  - Suspicious use of AdjustPrivilegeToken
  PID:2704
- C:\Users\Admin\cof.exe
  cof.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:4800
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Wimfck.dll",Startup
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    PID:2444
- C:\Users\Admin\cog.exe
  cog.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4260
- - C:\Users\Admin\cog.exe
    cog.exe
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    PID:2460
- C:\Windows\SysWOW64\cmd.exe
  cmd /c del fd9a8467506879fac5cfaf5bca7a4ae10d49015b2f4ccafd41438fe0ebbf2fba.exe
  2⤵
  PID:2708

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
103KB

MD5
be60099ceffb0aece0bc0c52998e9d65

SHA1
6ff11181390b5eccfb9a832ea5311d58bcc7a3a3

SHA256
e41f195954abff7c7bdc150773ad9f0b4029a883386ac179c1aa9d44f9ab6e4a

SHA512
c4beef5b86370a959b624041cc2db1de2da07a15df17077d728ea74036398fd1e62b6e7e147c53ea944606d751d0934f423b70193ad570a8cba097a823facdc0

Download Submit
C:\Users\Admin\AppData\Local\Wimfck.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
C:\Users\Admin\cog.exe

Filesize
145KB

MD5
262a039229f90ba2461f2e810ad74447

SHA1
9dfe5040a3d6ea8262313953c02a1e6ae39c6916

SHA256
e20729c3095a40a637efb304bdf57902cd4948f22406138e0dbdf28f034cedb3

SHA512
d7612cdbc38aea73462aa7851ab3078dfb89a1b4c96414f5d8144c456f694971f08a79bbb1a738ffeb273f99122432b1009cbf4bd483884dd50ca115a64ef641

Download Submit
memory/2444-166-0x0000000002E21000-0x0000000002E2F000-memory.dmp

Filesize
56KB

Download
memory/2444-153-0x0000000010000000-0x000000001001D000-memory.dmp

Filesize
116KB

Download
memory/2460-158-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2460-161-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2460-165-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2460-162-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2460-160-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2460-159-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2704-149-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2704-156-0x0000000002090000-0x00000000020E8000-memory.dmp

Filesize
352KB

Download
memory/2704-154-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2704-155-0x0000000002090000-0x00000000020E8000-memory.dmp

Filesize
352KB

Download
memory/2704-167-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/4800-151-0x0000000002001000-0x000000000200F000-memory.dmp

Filesize
56KB

Download
memory/4800-143-0x0000000010000000-0x000000001001D000-memory.dmp

Filesize
116KB

Download