modiloader | f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2024 04:10

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General

Target

f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe
Size

90KB
MD5

64709d9fc11d5ef95aa12a88581baf5e
SHA1

cc3b45357b755c5c6deba2476f9a61c0b424882f
SHA256

f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63
SHA512

bc7cc097d80b5b2184147960822efa18cb6123a095045923918fa2aedf09f70b2ee063627bd815b2a71721df510fca907d0b90a2758204401ee9ddb26522ec4a
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDC:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE34

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/2936-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2936-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2936-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2936-61-0x0000000000400000-0x0000000000414000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe

Executes dropped EXE 3 IoCs

pid	Process
2824	csrsll.exe
4520	csrsll.exe
2936	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-1-5-21-1045960512-3948844814-3059691613-1000\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 2900 set thread context of 4560	2900	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	88
PID 2824 set thread context of 4520	2824	csrsll.exe	100
PID 2824 set thread context of 2936	2824	csrsll.exe	101

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2900-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2900-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4560-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4560-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2900-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4560-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c8d-29.dat	upx
behavioral2/memory/4560-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2824-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2936-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2936-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2936-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2936-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2936-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2824-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2824-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4560-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4520-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2936-61-0x0000000000400000-0x0000000000414000-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	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.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	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe
Token: SeDebugPrivilege	4520	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2900	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe
4560	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe
2824	csrsll.exe
4520	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2900 wrote to memory of 4560	2900	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	88
PID 2900 wrote to memory of 4560	2900	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	88
PID 2900 wrote to memory of 4560	2900	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	88
PID 2900 wrote to memory of 4560	2900	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	88
PID 2900 wrote to memory of 4560	2900	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	88
PID 2900 wrote to memory of 4560	2900	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	88
PID 2900 wrote to memory of 4560	2900	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	88
PID 2900 wrote to memory of 4560	2900	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	88
PID 4560 wrote to memory of 4264	4560	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	91
PID 4560 wrote to memory of 4264	4560	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	91
PID 4560 wrote to memory of 4264	4560	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	91
PID 4264 wrote to memory of 2760	4264	cmd.exe	95
PID 4264 wrote to memory of 2760	4264	cmd.exe	95
PID 4264 wrote to memory of 2760	4264	cmd.exe	95
PID 4560 wrote to memory of 2824	4560	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	96
PID 4560 wrote to memory of 2824	4560	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	96
PID 4560 wrote to memory of 2824	4560	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	96
PID 2824 wrote to memory of 4520	2824	csrsll.exe	100
PID 2824 wrote to memory of 4520	2824	csrsll.exe	100
PID 2824 wrote to memory of 4520	2824	csrsll.exe	100
PID 2824 wrote to memory of 4520	2824	csrsll.exe	100
PID 2824 wrote to memory of 4520	2824	csrsll.exe	100
PID 2824 wrote to memory of 4520	2824	csrsll.exe	100
PID 2824 wrote to memory of 4520	2824	csrsll.exe	100
PID 2824 wrote to memory of 4520	2824	csrsll.exe	100
PID 2824 wrote to memory of 2936	2824	csrsll.exe	101
PID 2824 wrote to memory of 2936	2824	csrsll.exe	101
PID 2824 wrote to memory of 2936	2824	csrsll.exe	101
PID 2824 wrote to memory of 2936	2824	csrsll.exe	101
PID 2824 wrote to memory of 2936	2824	csrsll.exe	101
PID 2824 wrote to memory of 2936	2824	csrsll.exe	101
PID 2824 wrote to memory of 2936	2824	csrsll.exe	101
PID 2824 wrote to memory of 2936	2824	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe
"C:\Users\Admin\AppData\Local\Temp\f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2900
- C:\Users\Admin\AppData\Local\Temp\f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe
  "C:\Users\Admin\AppData\Local\Temp\f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4560
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\EWVST.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4264
  - - 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:2760
- - 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:2824
  - - 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:4520
  - - 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:2936

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\EWVST.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
95623e7b7df647df2d73f0bdef28577b

SHA1
9aba6ca7cdc3810904476a34ddaccb226562ade1

SHA256
bc68848394bd4c66f76fcecaab2728ba0747e393611eae4c9a40b8297f8a1136

SHA512
1a049a965826f9d73048d814403000dbc7b546fda8412d26a90c1dc0daf6486c59ce2a8b760b9419ab753c90ab445c594d139a5adb4f87c9a30a117f532c5920

Download Submit
memory/2824-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2824-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2824-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2900-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2900-6-0x0000000002C90000-0x0000000002C92000-memory.dmp

Filesize
8KB

Download
memory/2900-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2900-3-0x0000000002410000-0x0000000002412000-memory.dmp

Filesize
8KB

Download
memory/2900-4-0x0000000002C70000-0x0000000002C72000-memory.dmp

Filesize
8KB

Download
memory/2900-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2936-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2936-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2936-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2936-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2936-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2936-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4520-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4560-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4560-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4560-57-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4560-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4560-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4560-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads