modiloader | c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf

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
01/12/2024, 21:38

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General

Target

c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe
Size

90KB
MD5

4ba7f2c52227a76e279f0943f103e90a
SHA1

30191cd71ab4203a59e14b8a4fefd932ea979a2a
SHA256

c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf
SHA512

10085ef981716b44f6300ea019173f55c08c60fae8484aad0a9696631f531d0a5be22ea23e877fee8d44c35e4dc9baaf8d33eddcb2f9c93096f265c4e80ca4ed
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDA: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/1840-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1840-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1840-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1840-62-0x0000000000400000-0x0000000000414000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe

Executes dropped EXE 3 IoCs

pid	Process
1476	csrsll.exe
3064	csrsll.exe
1840	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-1-5-21-2878641211-696417878-3864914810-1000\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 2756	3676	c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe	83
PID 1476 set thread context of 3064	1476	csrsll.exe	95
PID 1476 set thread context of 1840	1476	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/2756-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2756-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2756-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3676-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023c9e-29.dat	upx
behavioral2/memory/2756-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1476-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1476-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1840-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1840-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1840-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1840-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1840-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1476-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2756-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3064-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1840-62-0x0000000000400000-0x0000000000414000-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	c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.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	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe
Token: SeDebugPrivilege	3064	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3676	c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe
2756	c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe
1476	csrsll.exe
3064	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3676 wrote to memory of 2756	3676	c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe	83
PID 3676 wrote to memory of 2756	3676	c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe	83
PID 3676 wrote to memory of 2756	3676	c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe	83
PID 3676 wrote to memory of 2756	3676	c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe	83
PID 3676 wrote to memory of 2756	3676	c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe	83
PID 3676 wrote to memory of 2756	3676	c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe	83
PID 3676 wrote to memory of 2756	3676	c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe	83
PID 3676 wrote to memory of 2756	3676	c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe	83
PID 2756 wrote to memory of 4464	2756	c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe	84
PID 2756 wrote to memory of 4464	2756	c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe	84
PID 2756 wrote to memory of 4464	2756	c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe	84
PID 4464 wrote to memory of 2012	4464	cmd.exe	88
PID 4464 wrote to memory of 2012	4464	cmd.exe	88
PID 4464 wrote to memory of 2012	4464	cmd.exe	88
PID 2756 wrote to memory of 1476	2756	c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe	89
PID 2756 wrote to memory of 1476	2756	c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe	89
PID 2756 wrote to memory of 1476	2756	c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe	89
PID 1476 wrote to memory of 3064	1476	csrsll.exe	95
PID 1476 wrote to memory of 3064	1476	csrsll.exe	95
PID 1476 wrote to memory of 3064	1476	csrsll.exe	95
PID 1476 wrote to memory of 3064	1476	csrsll.exe	95
PID 1476 wrote to memory of 3064	1476	csrsll.exe	95
PID 1476 wrote to memory of 3064	1476	csrsll.exe	95
PID 1476 wrote to memory of 3064	1476	csrsll.exe	95
PID 1476 wrote to memory of 3064	1476	csrsll.exe	95
PID 1476 wrote to memory of 1840	1476	csrsll.exe	96
PID 1476 wrote to memory of 1840	1476	csrsll.exe	96
PID 1476 wrote to memory of 1840	1476	csrsll.exe	96
PID 1476 wrote to memory of 1840	1476	csrsll.exe	96
PID 1476 wrote to memory of 1840	1476	csrsll.exe	96
PID 1476 wrote to memory of 1840	1476	csrsll.exe	96
PID 1476 wrote to memory of 1840	1476	csrsll.exe	96
PID 1476 wrote to memory of 1840	1476	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe
"C:\Users\Admin\AppData\Local\Temp\c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.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\c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe
  "C:\Users\Admin\AppData\Local\Temp\c1f7148ad93c2a5da0bc59580618d6a9a06d5ec0752f2ae7ff11164a7f3031bf.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2756
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\XWJRI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4464
  - - 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:2012
- - 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:1476
  - - 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:3064
  - - 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:1840

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\XWJRI.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
0bc9b81970eb5e0984be7c8d6a28023c

SHA1
41d82a5bc5231cd03e2a968834711bc582733d32

SHA256
5e4a49490dd83edd288ce74858b14886f68936781ae5a4e47fd5ddcce2791e8e

SHA512
5270940d09831c34ebda93a42fdacdf0d00bded027df99042deb568a8d7a8cbc1c955122db9a974485e44ec6338a8330246e3d7efa0df4171fd4d22fb958367f

Download Submit
memory/1476-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1476-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1476-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1840-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1840-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1840-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1840-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1840-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1840-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2756-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2756-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2756-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2756-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2756-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3064-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3676-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/3676-4-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

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

Filesize
332KB

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

Filesize
332KB

Download
memory/3676-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3676-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads