modiloader | a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49be

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-11-2024 00:52

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General

Target

a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe
Size

90KB
MD5

4bc017adacf36823caf037fea8301250
SHA1

06481fd841d8ed3f3add45c13d6c5cf716752bf4
SHA256

a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49be
SHA512

9cb0a36ad6f0964aa9e3498aabaddf3ef3f2a970d1d81a5358f7566e2bcf29ee410bdec5bd82d568d0ab06107f538ebfe27bf2e0ee37dee5a1392b3baca6aaa7
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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/3064-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3064-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3064-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3064-63-0x0000000000400000-0x0000000000414000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe

Executes dropped EXE 3 IoCs

pid	Process
2392	csrsll.exe
3244	csrsll.exe
3064	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-1-5-21-4050598569-1597076380-177084960-1000\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 2952 set thread context of 4444	2952	a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe	88
PID 2392 set thread context of 3244	2392	csrsll.exe	99
PID 2392 set thread context of 3064	2392	csrsll.exe	100

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2952-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2952-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4444-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4444-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4444-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2952-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000d000000023b6a-29.dat	upx
behavioral2/memory/2392-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4444-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2392-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2392-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3064-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3064-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3064-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3064-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3064-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2392-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4444-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3244-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3064-63-0x0000000000400000-0x0000000000414000-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	a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe
Token: SeDebugPrivilege	3244	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2952	a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe
4444	a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe
2392	csrsll.exe
3244	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2952 wrote to memory of 4444	2952	a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe	88
PID 2952 wrote to memory of 4444	2952	a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe	88
PID 2952 wrote to memory of 4444	2952	a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe	88
PID 2952 wrote to memory of 4444	2952	a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe	88
PID 2952 wrote to memory of 4444	2952	a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe	88
PID 2952 wrote to memory of 4444	2952	a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe	88
PID 2952 wrote to memory of 4444	2952	a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe	88
PID 2952 wrote to memory of 4444	2952	a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe	88
PID 4444 wrote to memory of 1444	4444	a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe	91
PID 4444 wrote to memory of 1444	4444	a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe	91
PID 4444 wrote to memory of 1444	4444	a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe	91
PID 1444 wrote to memory of 2520	1444	cmd.exe	94
PID 1444 wrote to memory of 2520	1444	cmd.exe	94
PID 1444 wrote to memory of 2520	1444	cmd.exe	94
PID 4444 wrote to memory of 2392	4444	a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe	95
PID 4444 wrote to memory of 2392	4444	a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe	95
PID 4444 wrote to memory of 2392	4444	a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe	95
PID 2392 wrote to memory of 3244	2392	csrsll.exe	99
PID 2392 wrote to memory of 3244	2392	csrsll.exe	99
PID 2392 wrote to memory of 3244	2392	csrsll.exe	99
PID 2392 wrote to memory of 3244	2392	csrsll.exe	99
PID 2392 wrote to memory of 3244	2392	csrsll.exe	99
PID 2392 wrote to memory of 3244	2392	csrsll.exe	99
PID 2392 wrote to memory of 3244	2392	csrsll.exe	99
PID 2392 wrote to memory of 3244	2392	csrsll.exe	99
PID 2392 wrote to memory of 3064	2392	csrsll.exe	100
PID 2392 wrote to memory of 3064	2392	csrsll.exe	100
PID 2392 wrote to memory of 3064	2392	csrsll.exe	100
PID 2392 wrote to memory of 3064	2392	csrsll.exe	100
PID 2392 wrote to memory of 3064	2392	csrsll.exe	100
PID 2392 wrote to memory of 3064	2392	csrsll.exe	100
PID 2392 wrote to memory of 3064	2392	csrsll.exe	100
PID 2392 wrote to memory of 3064	2392	csrsll.exe	100

C:\Users\Admin\AppData\Local\Temp\a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe
"C:\Users\Admin\AppData\Local\Temp\a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2952
- C:\Users\Admin\AppData\Local\Temp\a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe
  "C:\Users\Admin\AppData\Local\Temp\a718ba256ca2d5adff3fe559312cd31aadf57eab8e6c0f27e2e050eb9cfd49beN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4444
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\LKXEO.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1444
  - - 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:2520
- - 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:2392
  - - 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:3244
  - - 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:3064

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

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
2eb60c6c6663a11a3f9cbda2543d10ba

SHA1
65d80e1eb8ae619736805ebe13130b572c8e111e

SHA256
49e89b568a8e429f77c0f3e99131d465b711bb870cb5a10b55615d1ba35a0883

SHA512
0d5e770628594eb5a5a78771e082187655ab91347d44e44e292f0477b2b70f2dfd3cee10784137ee176fc274749987aacc405a916fdfe9080078c4453afbed48

Download Submit
memory/2392-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2392-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2392-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2392-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2952-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2952-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2952-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2952-6-0x0000000002CA0000-0x0000000002CA2000-memory.dmp

Filesize
8KB

Download
memory/2952-4-0x0000000002C80000-0x0000000002C82000-memory.dmp

Filesize
8KB

Download
memory/2952-3-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/3064-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3064-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3064-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3064-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3064-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3064-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3244-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4444-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4444-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4444-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4444-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4444-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4444-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads