modiloader | a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2024 14:09

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General

Target

a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe
Size

90KB
MD5

a14bcaadde880343729bb13b85936cff
SHA1

8a159f6330674e1704103ec45729782457624f22
SHA256

a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc
SHA512

873a5d531d5d64dbb2d9573e4d4cc4fe1d0fec74ef2d59fa7cd648fbc795c36da5e6f3445bf2c307274183dc5b327bd2a7b7f6dd4b2b545b3a342ecffe60a743
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDj:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3F

Score

10^/10

modiloader discovery 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 family
modiloader

ModiLoader Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/2320-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2320-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2320-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2320-62-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe

Executes dropped EXE 3 IoCs

pid	Process
4496	csrsll.exe
2660	csrsll.exe
2320	csrsll.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4004 set thread context of 3772	4004	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	84
PID 4496 set thread context of 2660	4496	csrsll.exe	95
PID 4496 set thread context of 2320	4496	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4004-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4004-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3772-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3772-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3772-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4004-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0009000000023bd9-29.dat	upx
behavioral2/memory/3772-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4496-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4496-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2320-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2320-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2320-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2320-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2320-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4496-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3772-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2660-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2320-62-0x0000000000400000-0x0000000000414000-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 7 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	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe
Token: SeDebugPrivilege	2660	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4004	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe
3772	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe
4496	csrsll.exe
2660	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4004 wrote to memory of 3772	4004	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	84
PID 4004 wrote to memory of 3772	4004	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	84
PID 4004 wrote to memory of 3772	4004	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	84
PID 4004 wrote to memory of 3772	4004	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	84
PID 4004 wrote to memory of 3772	4004	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	84
PID 4004 wrote to memory of 3772	4004	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	84
PID 4004 wrote to memory of 3772	4004	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	84
PID 4004 wrote to memory of 3772	4004	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	84
PID 3772 wrote to memory of 2136	3772	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	87
PID 3772 wrote to memory of 2136	3772	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	87
PID 3772 wrote to memory of 2136	3772	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	87
PID 2136 wrote to memory of 216	2136	cmd.exe	90
PID 2136 wrote to memory of 216	2136	cmd.exe	90
PID 2136 wrote to memory of 216	2136	cmd.exe	90
PID 3772 wrote to memory of 4496	3772	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	91
PID 3772 wrote to memory of 4496	3772	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	91
PID 3772 wrote to memory of 4496	3772	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	91
PID 4496 wrote to memory of 2660	4496	csrsll.exe	95
PID 4496 wrote to memory of 2660	4496	csrsll.exe	95
PID 4496 wrote to memory of 2660	4496	csrsll.exe	95
PID 4496 wrote to memory of 2660	4496	csrsll.exe	95
PID 4496 wrote to memory of 2660	4496	csrsll.exe	95
PID 4496 wrote to memory of 2660	4496	csrsll.exe	95
PID 4496 wrote to memory of 2660	4496	csrsll.exe	95
PID 4496 wrote to memory of 2660	4496	csrsll.exe	95
PID 4496 wrote to memory of 2320	4496	csrsll.exe	96
PID 4496 wrote to memory of 2320	4496	csrsll.exe	96
PID 4496 wrote to memory of 2320	4496	csrsll.exe	96
PID 4496 wrote to memory of 2320	4496	csrsll.exe	96
PID 4496 wrote to memory of 2320	4496	csrsll.exe	96
PID 4496 wrote to memory of 2320	4496	csrsll.exe	96
PID 4496 wrote to memory of 2320	4496	csrsll.exe	96
PID 4496 wrote to memory of 2320	4496	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe
"C:\Users\Admin\AppData\Local\Temp\a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4004
- C:\Users\Admin\AppData\Local\Temp\a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe
  "C:\Users\Admin\AppData\Local\Temp\a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3772
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\MALBW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2136
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:216
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4496
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2660
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:2320

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\MALBW.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

Filesize
90KB

MD5
7d14ae076df9b3dded8981e9a13e50a1

SHA1
f25d715c19ec9e4e19234b2b7673e8a4eeac8099

SHA256
373d17f59d7ed0aeaefd4ac1af71dbfdac2051c7530cb19a233617525cae9bc6

SHA512
6f48b1ae25dcd9862cfcdfe890ceaf81abab27565809b0e8d316629409b1aec8500469b3a36ff15436bcc5000050d2565daae43a27d2ba7320c63c7bd564a444

Download Submit
memory/2320-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2320-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2320-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2320-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2320-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2320-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2660-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3772-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3772-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3772-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3772-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3772-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4004-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4004-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4004-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/4004-4-0x0000000002A70000-0x0000000002A72000-memory.dmp

Filesize
8KB

Download
memory/4004-6-0x0000000002A90000-0x0000000002A92000-memory.dmp

Filesize
8KB

Download
memory/4004-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4496-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4496-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4496-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads