modiloader | c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8

Analysis

max time kernel
119s
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
12-01-2025 02:24

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General

Target

c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe
Size

90KB
MD5

9a3aec8f1358097b875706a96b5f7ca6
SHA1

b1ee427673c24336d00c64c2e819c48814be11fe
SHA256

c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8
SHA512

4dfc32010a8c8493a363c51f02879b1bc5e37602ca1adbfa62b971c07999e548fa59daf00d0a160e554902734d9b32d28666156dc7f1c8837c442405f7b1efe0
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/1856-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1856-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1856-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1856-61-0x0000000000400000-0x0000000000414000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe

Executes dropped EXE 3 IoCs

pid	Process
1868	csrsll.exe
2972	csrsll.exe
1856	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-1-5-21-4050598569-1597076380-177084960-1000\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 4592 set thread context of 5012	4592	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	84
PID 1868 set thread context of 2972	1868	csrsll.exe	92
PID 1868 set thread context of 1856	1868	csrsll.exe	93

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4592-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4592-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5012-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5012-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4592-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5012-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023ce2-29.dat	upx
behavioral2/memory/5012-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1868-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1868-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1856-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1856-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1856-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1856-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1856-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1868-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5012-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2972-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1856-61-0x0000000000400000-0x0000000000414000-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	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	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4592	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe
5012	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe
1868	csrsll.exe
2972	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4592 wrote to memory of 5012	4592	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	84
PID 4592 wrote to memory of 5012	4592	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	84
PID 4592 wrote to memory of 5012	4592	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	84
PID 4592 wrote to memory of 5012	4592	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	84
PID 4592 wrote to memory of 5012	4592	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	84
PID 4592 wrote to memory of 5012	4592	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	84
PID 4592 wrote to memory of 5012	4592	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	84
PID 4592 wrote to memory of 5012	4592	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	84
PID 5012 wrote to memory of 1476	5012	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	85
PID 5012 wrote to memory of 1476	5012	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	85
PID 5012 wrote to memory of 1476	5012	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	85
PID 1476 wrote to memory of 2016	1476	cmd.exe	88
PID 1476 wrote to memory of 2016	1476	cmd.exe	88
PID 1476 wrote to memory of 2016	1476	cmd.exe	88
PID 5012 wrote to memory of 1868	5012	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	89
PID 5012 wrote to memory of 1868	5012	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	89
PID 5012 wrote to memory of 1868	5012	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	89
PID 1868 wrote to memory of 2972	1868	csrsll.exe	92
PID 1868 wrote to memory of 2972	1868	csrsll.exe	92
PID 1868 wrote to memory of 2972	1868	csrsll.exe	92
PID 1868 wrote to memory of 2972	1868	csrsll.exe	92
PID 1868 wrote to memory of 2972	1868	csrsll.exe	92
PID 1868 wrote to memory of 2972	1868	csrsll.exe	92
PID 1868 wrote to memory of 2972	1868	csrsll.exe	92
PID 1868 wrote to memory of 2972	1868	csrsll.exe	92
PID 1868 wrote to memory of 1856	1868	csrsll.exe	93
PID 1868 wrote to memory of 1856	1868	csrsll.exe	93
PID 1868 wrote to memory of 1856	1868	csrsll.exe	93
PID 1868 wrote to memory of 1856	1868	csrsll.exe	93
PID 1868 wrote to memory of 1856	1868	csrsll.exe	93
PID 1868 wrote to memory of 1856	1868	csrsll.exe	93
PID 1868 wrote to memory of 1856	1868	csrsll.exe	93
PID 1868 wrote to memory of 1856	1868	csrsll.exe	93

C:\Users\Admin\AppData\Local\Temp\c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe
"C:\Users\Admin\AppData\Local\Temp\c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4592
- C:\Users\Admin\AppData\Local\Temp\c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe
  "C:\Users\Admin\AppData\Local\Temp\c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5012
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\MHLII.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1476
  - - 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:2016
- - 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:1868
  - - 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:2972
  - - 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:1856

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\MHLII.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
2ea124107f89bf18573ee79bf37bacbb

SHA1
dc269d7c6cad342501289bc7f5e3886fe006c4d3

SHA256
f818dc51ead248e57b75e65747e21587a3b62c338325ef071debec65198b9da1

SHA512
d7e1b8b549f4295c602cd91a11730b6fd7e94fc1c57290ec5aa811d37ce2574e6452ecb1688b3c3b570cc5c036a58f258bf98c806941a8b96336c0d20e7b39d8

Download Submit
memory/1856-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1856-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1856-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1856-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1856-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1856-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1868-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1868-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1868-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2972-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4592-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4592-6-0x0000000002A80000-0x0000000002A82000-memory.dmp

Filesize
8KB

Download
memory/4592-4-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/4592-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4592-3-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/4592-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5012-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5012-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5012-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5012-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5012-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads