modiloader | 979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074

Analysis

max time kernel
119s
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
10-12-2024 22:32

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General

Target

979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe
Size

90KB
MD5

bdc249ac69f64f6eec657e02ab125f30
SHA1

0255bfef632a586ccb147c0eefbadff7f03c39cd
SHA256

979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074
SHA512

32b818bbc97933164893d84c907853f22c0a0d0db8818474453f67e0ce57806c58aa5e00b0f05534fff507201076d583226f8067383608155625f50b3c7ac399
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDB:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3/

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/1620-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1620-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1620-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1620-64-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe

Executes dropped EXE 3 IoCs

pid	Process
4556	csrsll.exe
2600	csrsll.exe
1620	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-1-5-21-493223053-2004649691-1575712786-1000\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 1356 set thread context of 3184	1356	979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe	86
PID 4556 set thread context of 2600	4556	csrsll.exe	102
PID 4556 set thread context of 1620	4556	csrsll.exe	103

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1356-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1356-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3184-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3184-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3184-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1356-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b7d-30.dat	upx
behavioral2/memory/3184-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4556-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4556-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1620-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1620-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1620-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1620-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1620-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4556-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3184-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2600-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1620-64-0x0000000000400000-0x0000000000414000-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	979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe
Token: SeDebugPrivilege	2600	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1356	979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe
3184	979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe
4556	csrsll.exe
2600	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1356 wrote to memory of 3184	1356	979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe	86
PID 1356 wrote to memory of 3184	1356	979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe	86
PID 1356 wrote to memory of 3184	1356	979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe	86
PID 1356 wrote to memory of 3184	1356	979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe	86
PID 1356 wrote to memory of 3184	1356	979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe	86
PID 1356 wrote to memory of 3184	1356	979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe	86
PID 1356 wrote to memory of 3184	1356	979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe	86
PID 1356 wrote to memory of 3184	1356	979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe	86
PID 3184 wrote to memory of 1432	3184	979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe	91
PID 3184 wrote to memory of 1432	3184	979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe	91
PID 3184 wrote to memory of 1432	3184	979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe	91
PID 1432 wrote to memory of 3896	1432	cmd.exe	95
PID 1432 wrote to memory of 3896	1432	cmd.exe	95
PID 1432 wrote to memory of 3896	1432	cmd.exe	95
PID 3184 wrote to memory of 4556	3184	979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe	96
PID 3184 wrote to memory of 4556	3184	979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe	96
PID 3184 wrote to memory of 4556	3184	979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe	96
PID 4556 wrote to memory of 2600	4556	csrsll.exe	102
PID 4556 wrote to memory of 2600	4556	csrsll.exe	102
PID 4556 wrote to memory of 2600	4556	csrsll.exe	102
PID 4556 wrote to memory of 2600	4556	csrsll.exe	102
PID 4556 wrote to memory of 2600	4556	csrsll.exe	102
PID 4556 wrote to memory of 2600	4556	csrsll.exe	102
PID 4556 wrote to memory of 2600	4556	csrsll.exe	102
PID 4556 wrote to memory of 2600	4556	csrsll.exe	102
PID 4556 wrote to memory of 1620	4556	csrsll.exe	103
PID 4556 wrote to memory of 1620	4556	csrsll.exe	103
PID 4556 wrote to memory of 1620	4556	csrsll.exe	103
PID 4556 wrote to memory of 1620	4556	csrsll.exe	103
PID 4556 wrote to memory of 1620	4556	csrsll.exe	103
PID 4556 wrote to memory of 1620	4556	csrsll.exe	103
PID 4556 wrote to memory of 1620	4556	csrsll.exe	103
PID 4556 wrote to memory of 1620	4556	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe
"C:\Users\Admin\AppData\Local\Temp\979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1356
- C:\Users\Admin\AppData\Local\Temp\979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe
  "C:\Users\Admin\AppData\Local\Temp\979f89bd35c23f8c27c3d151514ffa1fbe318861b89ced3f389837acc6eda074N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3184
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DYCQG.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1432
  - - 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:3896
- - 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:4556
  - - 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:2600
  - - 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:1620

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\DYCQG.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
03c189077bf0674277586c20927ac302

SHA1
6ed0d00ab514f8b83009dba040c69de73a0c25d5

SHA256
09cfadbbda8d10303a01852379661d0a84ea618b72565badc6c4219d28c62a42

SHA512
e5e136930bf44332c9c5b23ab6db6eda0835ab21778b5f2bf307eb177bf7cb400cf192d9de1214aa12e90ff560f829cc81fcbeadd4f5e60f479e4bacfd351e33

Download Submit
memory/1356-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1356-3-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/1356-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1356-4-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/1356-7-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/1356-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/1356-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1620-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1620-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1620-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1620-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1620-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1620-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2600-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3184-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3184-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3184-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3184-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3184-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3184-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4556-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4556-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4556-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads