modiloader | 79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-12-2024 01:49

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General

Target

79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe
Size

90KB
MD5

8cc69ac51423b8dc1a18b52a60cdfe7f
SHA1

7360a0adc2a84c376033585455b5ea02fb8aebd3
SHA256

79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7
SHA512

e97e0cca696327e8b50f9d6e8c8bd3b9c9639bf85a3c23a1c90e50a31dddaa102c4ca8c167211f018910f75c2e61f78ba656a7d3a52f31e58d53da5aa637a3d1
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDU:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3C

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/4056-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4056-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4056-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4056-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe

Executes dropped EXE 3 IoCs

pid	Process
4492	csrsll.exe
2388	csrsll.exe
4056	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-1-5-21-3350944739-639801879-157714471-1000\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 2428 set thread context of 1248	2428	79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe	85
PID 4492 set thread context of 2388	4492	csrsll.exe	102
PID 4492 set thread context of 4056	4492	csrsll.exe	103

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2428-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2428-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1248-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1248-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1248-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2428-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b65-30.dat	upx
behavioral2/memory/1248-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4492-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4056-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4056-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4056-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4056-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4056-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4492-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1248-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2388-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4056-62-0x0000000000400000-0x0000000000414000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe
Token: SeDebugPrivilege	2388	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2428	79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe
1248	79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe
4492	csrsll.exe
2388	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2428 wrote to memory of 1248	2428	79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe	85
PID 2428 wrote to memory of 1248	2428	79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe	85
PID 2428 wrote to memory of 1248	2428	79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe	85
PID 2428 wrote to memory of 1248	2428	79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe	85
PID 2428 wrote to memory of 1248	2428	79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe	85
PID 2428 wrote to memory of 1248	2428	79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe	85
PID 2428 wrote to memory of 1248	2428	79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe	85
PID 2428 wrote to memory of 1248	2428	79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe	85
PID 1248 wrote to memory of 2968	1248	79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe	91
PID 1248 wrote to memory of 2968	1248	79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe	91
PID 1248 wrote to memory of 2968	1248	79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe	91
PID 2968 wrote to memory of 2828	2968	cmd.exe	95
PID 2968 wrote to memory of 2828	2968	cmd.exe	95
PID 2968 wrote to memory of 2828	2968	cmd.exe	95
PID 1248 wrote to memory of 4492	1248	79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe	96
PID 1248 wrote to memory of 4492	1248	79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe	96
PID 1248 wrote to memory of 4492	1248	79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe	96
PID 4492 wrote to memory of 2388	4492	csrsll.exe	102
PID 4492 wrote to memory of 2388	4492	csrsll.exe	102
PID 4492 wrote to memory of 2388	4492	csrsll.exe	102
PID 4492 wrote to memory of 2388	4492	csrsll.exe	102
PID 4492 wrote to memory of 2388	4492	csrsll.exe	102
PID 4492 wrote to memory of 2388	4492	csrsll.exe	102
PID 4492 wrote to memory of 2388	4492	csrsll.exe	102
PID 4492 wrote to memory of 2388	4492	csrsll.exe	102
PID 4492 wrote to memory of 4056	4492	csrsll.exe	103
PID 4492 wrote to memory of 4056	4492	csrsll.exe	103
PID 4492 wrote to memory of 4056	4492	csrsll.exe	103
PID 4492 wrote to memory of 4056	4492	csrsll.exe	103
PID 4492 wrote to memory of 4056	4492	csrsll.exe	103
PID 4492 wrote to memory of 4056	4492	csrsll.exe	103
PID 4492 wrote to memory of 4056	4492	csrsll.exe	103
PID 4492 wrote to memory of 4056	4492	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe
"C:\Users\Admin\AppData\Local\Temp\79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2428
- C:\Users\Admin\AppData\Local\Temp\79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe
  "C:\Users\Admin\AppData\Local\Temp\79c2ab1d77d04af8fc853a45eeea74f5dc2cc747281ee74a90e421df00b909a7.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1248
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\QMLYF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2968
  - - 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:2828
- - 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:4492
  - - 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:2388
  - - 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:4056

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\QMLYF.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
6e19b530f5fcfa28a9e62bfe02f44630

SHA1
69e7ff769d6c5db06b16395150ae2a18cc0c7160

SHA256
ee5c56e359a4d07bc30523237ba614b7489ba520c19855d048d83c17d342faa4

SHA512
601e3c9a0e6dc61f54fe7e2d86cac564142649ba3e998dc4a542d31c67ea749365902268dfb046d21c84bf47191d34deb785fe77fe68419fde98ecdd04b0c465

Download Submit
memory/1248-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1248-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1248-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1248-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1248-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1248-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2388-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2428-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2428-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2428-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2428-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/2428-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/2428-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/4056-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4056-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4056-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4056-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4056-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4056-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4492-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4492-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads