modiloader | d2bdfcbd19e9c70db357186951768147fbcab5d35b5d50227970f82be580bafa

Analysis

max time kernel
141s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25-09-2024 19:50

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General

Target

f6be6cc8364e832245bf93672602c07a_JaffaCakes118.exe
Size

133KB
MD5

f6be6cc8364e832245bf93672602c07a
SHA1

55b3be42fe7c16f7bc8171f1ec50bad27cfafa2b
SHA256

d2bdfcbd19e9c70db357186951768147fbcab5d35b5d50227970f82be580bafa
SHA512

7b36f6023d513b05c4b7502afe70ab79cf148be5129e74cf286f1cd79d9f5108cc4bf6a3576ee36d398169ad857b0b030c276be8d7bc6aa8eba67575d9dd3819
SSDEEP

3072:wz21bWvnGE5pbQ+47MBmfQF0h6wadsIRTmLYnju:LunzVzBmfAwadsmTmL1

Score

10^/10

modiloader discovery evasion 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 1 IoCs

resource	yara_rule
behavioral2/memory/4860-8-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

pid	Process
4860	rst.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rst.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\rst.exe	f6be6cc8364e832245bf93672602c07a_JaffaCakes118.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x00070000000234bb-4.dat	upx
behavioral2/memory/4860-6-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4860-8-0x0000000000400000-0x0000000000450000-memory.dmp	upx

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 2 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	f6be6cc8364e832245bf93672602c07a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rst.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4860	rst.exe
Token: SeBackupPrivilege	904	vssvc.exe
Token: SeRestorePrivilege	904	vssvc.exe
Token: SeAuditPrivilege	904	vssvc.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4860	rst.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2588	f6be6cc8364e832245bf93672602c07a_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2588 wrote to memory of 4860	2588	f6be6cc8364e832245bf93672602c07a_JaffaCakes118.exe	82
PID 2588 wrote to memory of 4860	2588	f6be6cc8364e832245bf93672602c07a_JaffaCakes118.exe	82
PID 2588 wrote to memory of 4860	2588	f6be6cc8364e832245bf93672602c07a_JaffaCakes118.exe	82

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\f6be6cc8364e832245bf93672602c07a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f6be6cc8364e832245bf93672602c07a_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2588
- C:\Windows\SysWOW64\rst.exe
  C:\Windows\system32\rst.exe
  2⤵
  - Executes dropped EXE
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  PID:4860

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:904

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\rst.exe

Filesize
109KB

MD5
bea15b95c94111c3bc36baf51281d0de

SHA1
e98b85c625efa54df274585370453bf1b2372840

SHA256
0c21e892d5b3bfa9a3d20fb14be1bae3c4b30dbf56b434b9827b1d09560ae1c8

SHA512
6757b0beac23db226c1169f4d69d8385d6a19f1148f1d3ad534ddb432dd202059b52b0d1deafee84dbdd8b491e1bad796adda04b62911298193f471f0e3d4fc6

Download Submit
memory/4860-6-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4860-7-0x0000000000A60000-0x0000000000A61000-memory.dmp

Filesize
4KB

Download
memory/4860-8-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download