modiloader | 589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-01-2025 06:05

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General

Target

589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe
Size

300KB
MD5

e8746f60596b6d3a37dedb9355c568e0
SHA1

7a19ecc8ef5dd848a299b585d2ddef062fc44c4e
SHA256

589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46
SHA512

4b36163d40ac578ec0b6acde4db9a43f4aac32582b3a3f28de2e00b18f02641e185793735e6467a450492106b2cacee805ab84f2e5a3954f8e3893936c9e140b
SSDEEP

3072:Ue2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38G8:UsxD5cwohO+O1sVG0/pZ6iPC8G

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/5044-49-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5044-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5044-50-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5044-59-0x0000000000400000-0x0000000000414000-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	589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe

Executes dropped EXE 3 IoCs

pid	Process
3824	csrsll.exe
4832	csrsll.exe
5044	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 1056 set thread context of 1812	1056	589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe	82
PID 3824 set thread context of 4832	3824	csrsll.exe	95
PID 3824 set thread context of 5044	3824	csrsll.exe	96

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1812-6-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1812-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1812-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1812-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1812-37-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5044-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5044-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5044-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5044-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5044-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1812-55-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4832-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5044-59-0x0000000000400000-0x0000000000414000-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	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	589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe
Token: SeDebugPrivilege	4832	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1056	589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe
1812	589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe
3824	csrsll.exe
4832	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1056 wrote to memory of 1812	1056	589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe	82
PID 1056 wrote to memory of 1812	1056	589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe	82
PID 1056 wrote to memory of 1812	1056	589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe	82
PID 1056 wrote to memory of 1812	1056	589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe	82
PID 1056 wrote to memory of 1812	1056	589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe	82
PID 1056 wrote to memory of 1812	1056	589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe	82
PID 1056 wrote to memory of 1812	1056	589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe	82
PID 1056 wrote to memory of 1812	1056	589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe	82
PID 1812 wrote to memory of 1932	1812	589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe	83
PID 1812 wrote to memory of 1932	1812	589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe	83
PID 1812 wrote to memory of 1932	1812	589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe	83
PID 1932 wrote to memory of 1892	1932	cmd.exe	86
PID 1932 wrote to memory of 1892	1932	cmd.exe	86
PID 1932 wrote to memory of 1892	1932	cmd.exe	86
PID 1812 wrote to memory of 3824	1812	589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe	87
PID 1812 wrote to memory of 3824	1812	589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe	87
PID 1812 wrote to memory of 3824	1812	589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe	87
PID 3824 wrote to memory of 4832	3824	csrsll.exe	95
PID 3824 wrote to memory of 4832	3824	csrsll.exe	95
PID 3824 wrote to memory of 4832	3824	csrsll.exe	95
PID 3824 wrote to memory of 4832	3824	csrsll.exe	95
PID 3824 wrote to memory of 4832	3824	csrsll.exe	95
PID 3824 wrote to memory of 4832	3824	csrsll.exe	95
PID 3824 wrote to memory of 4832	3824	csrsll.exe	95
PID 3824 wrote to memory of 4832	3824	csrsll.exe	95
PID 3824 wrote to memory of 5044	3824	csrsll.exe	96
PID 3824 wrote to memory of 5044	3824	csrsll.exe	96
PID 3824 wrote to memory of 5044	3824	csrsll.exe	96
PID 3824 wrote to memory of 5044	3824	csrsll.exe	96
PID 3824 wrote to memory of 5044	3824	csrsll.exe	96
PID 3824 wrote to memory of 5044	3824	csrsll.exe	96
PID 3824 wrote to memory of 5044	3824	csrsll.exe	96
PID 3824 wrote to memory of 5044	3824	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe
"C:\Users\Admin\AppData\Local\Temp\589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1056
- C:\Users\Admin\AppData\Local\Temp\589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe
  "C:\Users\Admin\AppData\Local\Temp\589cf46db69bd928cc1eb36219381b8a762cf10ae165d6094c1ccf6e184fbe46N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1812
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\IVUHP.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1932
  - - 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:1892
- - 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:3824
  - - 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:4832
  - - 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:5044

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\IVUHP.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
300KB

MD5
a9721bdbef8964db1b83b6d558790c62

SHA1
b9538be9ad5bb2f0b45ae4af0eb9902012953104

SHA256
eaf3313dc239665f29083d40b5d125459dd9eaebef73adee874c69a9d14aa27e

SHA512
a43799c5693f05adb40f9aad8adad0e963bbcb18dab1338f58e20e7a00df2cf21a46a735a02974e43bbe99267a0b72ef1cc391cec93f5d708c60059437ba3f3a

Download Submit
memory/1056-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/1056-4-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/1056-5-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/1056-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1812-37-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1812-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1812-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1812-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1812-6-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1812-55-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3824-52-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3824-39-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3824-38-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4832-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5044-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5044-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5044-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5044-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5044-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5044-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads