modiloader | c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f

Analysis

max time kernel
118s
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
18-12-2024 11:03

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General

Target

c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe
Size

90KB
MD5

1a99c57fa7d83760e09a3ff812e417b4
SHA1

7bf657bee7072b4b68d259b2a66620576a32b964
SHA256

c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f
SHA512

b0af9aa9374a3bf6230f5c159db0cfe7156fea6626ac7e7ef57a81e11f1fe8eac16488e564d05f2b6eeff74d6d7ee803e928047f86f2f28af5eb4f8cd41f3aba
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDQ:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3a

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/2804-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2804-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2804-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2804-61-0x0000000000400000-0x0000000000414000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe

Executes dropped EXE 3 IoCs

pid	Process
1120	csrsll.exe
4128	csrsll.exe
2804	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-1-5-21-3227495264-2217614367-4027411560-1000\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 3676 set thread context of 4980	3676	c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe	82
PID 1120 set thread context of 4128	1120	csrsll.exe	95
PID 1120 set thread context of 2804	1120	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3676-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3676-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4980-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4980-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3676-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4980-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c85-29.dat	upx
behavioral2/memory/4980-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1120-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1120-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2804-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2804-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2804-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2804-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2804-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1120-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4980-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4128-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2804-61-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe
Token: SeDebugPrivilege	4128	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3676	c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe
4980	c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe
1120	csrsll.exe
4128	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3676 wrote to memory of 4980	3676	c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe	82
PID 3676 wrote to memory of 4980	3676	c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe	82
PID 3676 wrote to memory of 4980	3676	c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe	82
PID 3676 wrote to memory of 4980	3676	c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe	82
PID 3676 wrote to memory of 4980	3676	c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe	82
PID 3676 wrote to memory of 4980	3676	c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe	82
PID 3676 wrote to memory of 4980	3676	c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe	82
PID 3676 wrote to memory of 4980	3676	c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe	82
PID 4980 wrote to memory of 2304	4980	c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe	87
PID 4980 wrote to memory of 2304	4980	c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe	87
PID 4980 wrote to memory of 2304	4980	c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe	87
PID 2304 wrote to memory of 2768	2304	cmd.exe	90
PID 2304 wrote to memory of 2768	2304	cmd.exe	90
PID 2304 wrote to memory of 2768	2304	cmd.exe	90
PID 4980 wrote to memory of 1120	4980	c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe	91
PID 4980 wrote to memory of 1120	4980	c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe	91
PID 4980 wrote to memory of 1120	4980	c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe	91
PID 1120 wrote to memory of 4128	1120	csrsll.exe	95
PID 1120 wrote to memory of 4128	1120	csrsll.exe	95
PID 1120 wrote to memory of 4128	1120	csrsll.exe	95
PID 1120 wrote to memory of 4128	1120	csrsll.exe	95
PID 1120 wrote to memory of 4128	1120	csrsll.exe	95
PID 1120 wrote to memory of 4128	1120	csrsll.exe	95
PID 1120 wrote to memory of 4128	1120	csrsll.exe	95
PID 1120 wrote to memory of 4128	1120	csrsll.exe	95
PID 1120 wrote to memory of 2804	1120	csrsll.exe	96
PID 1120 wrote to memory of 2804	1120	csrsll.exe	96
PID 1120 wrote to memory of 2804	1120	csrsll.exe	96
PID 1120 wrote to memory of 2804	1120	csrsll.exe	96
PID 1120 wrote to memory of 2804	1120	csrsll.exe	96
PID 1120 wrote to memory of 2804	1120	csrsll.exe	96
PID 1120 wrote to memory of 2804	1120	csrsll.exe	96
PID 1120 wrote to memory of 2804	1120	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe
"C:\Users\Admin\AppData\Local\Temp\c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3676
- C:\Users\Admin\AppData\Local\Temp\c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe
  "C:\Users\Admin\AppData\Local\Temp\c1fe14fecf18a093f0e3670ee3f733d0c6d79824855c231e34975f065d8a934f.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4980
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DJOAC.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2304
  - - 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:2768
- - 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:1120
  - - 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:4128
  - - 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:2804

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\DJOAC.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
e269e7822b11140f5975d33b80930ee6

SHA1
697bfafc7c62cacb88210f675f62486dd35d3bb8

SHA256
d95b132901860251f1524a3f1b3dee77f100a54e3ae516126467f19e3082e890

SHA512
07979707462a9bed6e795d62658f33045187bbb4d0a0dba9b5749e81125e69609bda22cfe8631a80ee8cdd133f047d9e4d7c1f901729917a9ada476cbb069df5

Download Submit
memory/1120-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1120-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1120-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2804-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2804-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2804-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2804-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2804-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2804-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3676-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3676-6-0x0000000002A80000-0x0000000002A82000-memory.dmp

Filesize
8KB

Download
memory/3676-4-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/3676-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3676-3-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/3676-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4128-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4980-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4980-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4980-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4980-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4980-57-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4980-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads