modiloader | 6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b

General

Target

6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b.exe
Size

108KB
MD5

82cb127950bd78e3d111f3e1a56cd7cd
SHA1

6eeafd847d681f7ecd2d2a8b6e97d0a909c96ab1
SHA256

6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b
SHA512

c1810cd8c6061ecadfefb7c455e7645f80ed848d63ff5be89a2bd311887517f3c71dc3bcd2df88d2981fce5dd7da557f38b70044850f12be08134811c0d41b18
SSDEEP

1536:sWbEbt5nLgdnfeKDIy4jwBjZZN33ejz3VcP9EQv+K5NM9je5n:sWbEsn7Iy4ojt36zOOqHR

Score

10^/10

modiloader persistence trojan upx

Malware Config

Signatures

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

ModiLoader Second Stage 5 IoCs

resource	yara_rule
behavioral2/memory/1868-138-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1868-139-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1868-144-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4936-151-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4936-152-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 2 IoCs

pid	Process
4772	winvmsrv.exe
4936	winvmsrv.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1868-135-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1868-137-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1868-138-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1868-139-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1868-144-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4936-150-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4936-151-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4936-152-0x0000000000400000-0x0000000000414000-memory.dmp	upx

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\winvmsrv = "C:\\Users\\Admin\\AppData\\Roaming\\winvmsrv.exe"	winvmsrv.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4088 set thread context of 1868	4088	6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b.exe	80
PID 4772 set thread context of 4936	4772	winvmsrv.exe	82

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4088	6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b.exe
4772	winvmsrv.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4088 wrote to memory of 1868	4088	6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b.exe	80
PID 4088 wrote to memory of 1868	4088	6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b.exe	80
PID 4088 wrote to memory of 1868	4088	6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b.exe	80
PID 4088 wrote to memory of 1868	4088	6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b.exe	80
PID 4088 wrote to memory of 1868	4088	6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b.exe	80
PID 4088 wrote to memory of 1868	4088	6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b.exe	80
PID 4088 wrote to memory of 1868	4088	6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b.exe	80
PID 4088 wrote to memory of 1868	4088	6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b.exe	80
PID 1868 wrote to memory of 4772	1868	6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b.exe	81
PID 1868 wrote to memory of 4772	1868	6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b.exe	81
PID 1868 wrote to memory of 4772	1868	6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b.exe	81
PID 4772 wrote to memory of 4936	4772	winvmsrv.exe	82
PID 4772 wrote to memory of 4936	4772	winvmsrv.exe	82
PID 4772 wrote to memory of 4936	4772	winvmsrv.exe	82
PID 4772 wrote to memory of 4936	4772	winvmsrv.exe	82
PID 4772 wrote to memory of 4936	4772	winvmsrv.exe	82
PID 4772 wrote to memory of 4936	4772	winvmsrv.exe	82
PID 4772 wrote to memory of 4936	4772	winvmsrv.exe	82
PID 4772 wrote to memory of 4936	4772	winvmsrv.exe	82

C:\Users\Admin\AppData\Local\Temp\6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b.exe
"C:\Users\Admin\AppData\Local\Temp\6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4088
- C:\Users\Admin\AppData\Local\Temp\6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b.exe
  "C:\Users\Admin\AppData\Local\Temp\6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:1868
- - C:\Users\Admin\AppData\Roaming\winvmsrv.exe
    "C:\Users\Admin\AppData\Roaming\winvmsrv.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4772
  - - C:\Users\Admin\AppData\Roaming\winvmsrv.exe
      "C:\Users\Admin\AppData\Roaming\winvmsrv.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      PID:4936

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

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\winvmsrv.exe

Filesize
108KB

MD5
82cb127950bd78e3d111f3e1a56cd7cd

SHA1
6eeafd847d681f7ecd2d2a8b6e97d0a909c96ab1

SHA256
6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b

SHA512
c1810cd8c6061ecadfefb7c455e7645f80ed848d63ff5be89a2bd311887517f3c71dc3bcd2df88d2981fce5dd7da557f38b70044850f12be08134811c0d41b18

Download Submit
C:\Users\Admin\AppData\Roaming\winvmsrv.exe

Filesize
108KB

MD5
82cb127950bd78e3d111f3e1a56cd7cd

SHA1
6eeafd847d681f7ecd2d2a8b6e97d0a909c96ab1

SHA256
6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b

SHA512
c1810cd8c6061ecadfefb7c455e7645f80ed848d63ff5be89a2bd311887517f3c71dc3bcd2df88d2981fce5dd7da557f38b70044850f12be08134811c0d41b18

Download Submit
C:\Users\Admin\AppData\Roaming\winvmsrv.exe

Filesize
108KB

MD5
82cb127950bd78e3d111f3e1a56cd7cd

SHA1
6eeafd847d681f7ecd2d2a8b6e97d0a909c96ab1

SHA256
6dc472ca99051165d6cf2f2b0807380c60ef556f49835941e41f9f9fb183c05b

SHA512
c1810cd8c6061ecadfefb7c455e7645f80ed848d63ff5be89a2bd311887517f3c71dc3bcd2df88d2981fce5dd7da557f38b70044850f12be08134811c0d41b18

Download Submit
memory/1868-138-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1868-139-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1868-134-0x0000000000000000-mapping.dmp

Download
memory/1868-137-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1868-144-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1868-135-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4772-140-0x0000000000000000-mapping.dmp

Download
memory/4936-146-0x0000000000000000-mapping.dmp

Download
memory/4936-150-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4936-151-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4936-152-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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