modiloader | b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea

Analysis

max time kernel
120s
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
11-01-2025 02:24

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General

Target

b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe
Size

326KB
MD5

38108a7462fa9d2df075eff079127070
SHA1

ea94feb475bb1da76d5da8c7933152ecc5f77154
SHA256

b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea
SHA512

b446d087f8a9ac0e3e82e67b7676abebf4e9a8be03e92afea01ae096d577e5fae70b49591e60c9f614bb939ccd84011282e350b5ff56c4b76e526c27d5020cb4
SSDEEP

3072:h0e2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XVz:h0sxD5cwohO+O1sVG0/pZ6iPC8E

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/952-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/952-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/952-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/952-61-0x0000000000400000-0x0000000000414000-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	b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe

Executes dropped EXE 3 IoCs

pid	Process
760	csrsll.exe
2892	csrsll.exe
952	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 4560 set thread context of 1924	4560	b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe	88
PID 760 set thread context of 2892	760	csrsll.exe	100
PID 760 set thread context of 952	760	csrsll.exe	101

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4560-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4560-5-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1924-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1924-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4560-11-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1924-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b6f-28.dat	upx
behavioral2/memory/1924-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/760-39-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/760-40-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/952-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/952-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/952-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/952-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/952-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/760-55-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1924-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2892-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/952-61-0x0000000000400000-0x0000000000414000-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	b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe
Token: SeDebugPrivilege	2892	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4560	b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe
1924	b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe
760	csrsll.exe
2892	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4560 wrote to memory of 1924	4560	b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe	88
PID 4560 wrote to memory of 1924	4560	b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe	88
PID 4560 wrote to memory of 1924	4560	b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe	88
PID 4560 wrote to memory of 1924	4560	b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe	88
PID 4560 wrote to memory of 1924	4560	b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe	88
PID 4560 wrote to memory of 1924	4560	b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe	88
PID 4560 wrote to memory of 1924	4560	b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe	88
PID 4560 wrote to memory of 1924	4560	b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe	88
PID 1924 wrote to memory of 2396	1924	b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe	91
PID 1924 wrote to memory of 2396	1924	b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe	91
PID 1924 wrote to memory of 2396	1924	b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe	91
PID 2396 wrote to memory of 2888	2396	cmd.exe	95
PID 2396 wrote to memory of 2888	2396	cmd.exe	95
PID 2396 wrote to memory of 2888	2396	cmd.exe	95
PID 1924 wrote to memory of 760	1924	b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe	96
PID 1924 wrote to memory of 760	1924	b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe	96
PID 1924 wrote to memory of 760	1924	b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe	96
PID 760 wrote to memory of 2892	760	csrsll.exe	100
PID 760 wrote to memory of 2892	760	csrsll.exe	100
PID 760 wrote to memory of 2892	760	csrsll.exe	100
PID 760 wrote to memory of 2892	760	csrsll.exe	100
PID 760 wrote to memory of 2892	760	csrsll.exe	100
PID 760 wrote to memory of 2892	760	csrsll.exe	100
PID 760 wrote to memory of 2892	760	csrsll.exe	100
PID 760 wrote to memory of 2892	760	csrsll.exe	100
PID 760 wrote to memory of 952	760	csrsll.exe	101
PID 760 wrote to memory of 952	760	csrsll.exe	101
PID 760 wrote to memory of 952	760	csrsll.exe	101
PID 760 wrote to memory of 952	760	csrsll.exe	101
PID 760 wrote to memory of 952	760	csrsll.exe	101
PID 760 wrote to memory of 952	760	csrsll.exe	101
PID 760 wrote to memory of 952	760	csrsll.exe	101
PID 760 wrote to memory of 952	760	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe
"C:\Users\Admin\AppData\Local\Temp\b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4560
- C:\Users\Admin\AppData\Local\Temp\b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe
  "C:\Users\Admin\AppData\Local\Temp\b563fcc1cbfa5e2fc96f08a64ee473088d645b886d72df1d89335e44a9cf2cea.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1924
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YPKJX.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2396
  - - 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:2888
- - 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:760
  - - 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:2892
  - - 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:952

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\YPKJX.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
326KB

MD5
07371db77f7ea9fe6f1c1c5693fa72d1

SHA1
5db47961f08f3cd048b50bdf6d3613d92addb9bd

SHA256
d33bdc5e8a2ea762f3a3be57e046c2d1156497bb7abba5ac2128961118f24ab6

SHA512
3f1617edc5d46ebe207363688d1102f7b7bf6033803d7e1266e8005c8b32052b586d399573b12107d96188bf3847f9f207863be1127d7e5553c6d55ca7e95796

Download Submit
memory/760-55-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/760-40-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/760-39-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/952-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/952-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/952-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/952-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/952-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/952-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1924-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1924-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1924-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1924-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1924-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2892-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4560-6-0x0000000002340000-0x0000000002342000-memory.dmp

Filesize
8KB

Download
memory/4560-4-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/4560-5-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4560-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4560-3-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/4560-11-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads