modiloader | c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11

General

Target

c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
Size

338KB
MD5

563dc5975e261789895fed97482b43ab
SHA1

733c8ebc3b82a42ec9b5184ec70cc877760cfecb
SHA256

c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11
SHA512

05a59f4493856263afb09694b371bc38b12130acb15e57a44103a4d4d34c7ef00fb5f50010504ca48b0d5a29468696560f0446e85c5bc16ea0049d27020561a4
SSDEEP

3072:bc3sBG7mXh7m/zZM3jAbNOM6CNtDCZFc/H:w3sBz0Z4Mj72Fg

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

Processes:

resource	yara_rule
behavioral2/memory/396-48-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/396-49-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/396-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/396-56-0x0000000000400000-0x0000000000414000-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

Processes:

c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe

Executes dropped EXE 3 IoCs

Processes:

csrsll.execsrsll.execsrsll.exe

pid process

3008 csrsll.exe
2692 csrsll.exe
396 csrsll.exe

pid	process
3008	csrsll.exe
2692	csrsll.exe
396	csrsll.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.execsrsll.exe

description	pid	process	target process
PID 4700 set thread context of 2992	4700	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
PID 3008 set thread context of 2692	3008	csrsll.exe	csrsll.exe
PID 3008 set thread context of 396	3008	csrsll.exe	csrsll.exe

UPX packed file 18 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4700-0-0x0000000000400000-0x0000000000457000-memory.dmp	upx
behavioral2/memory/2992-5-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4700-8-0x0000000000400000-0x0000000000457000-memory.dmp	upx
behavioral2/memory/2992-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe	upx
behavioral2/memory/3008-35-0x0000000000400000-0x0000000000457000-memory.dmp	upx
behavioral2/memory/3008-36-0x0000000000400000-0x0000000000457000-memory.dmp	upx
behavioral2/memory/2992-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/396-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2692-42-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/396-41-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/396-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/396-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3008-51-0x0000000000400000-0x0000000000457000-memory.dmp	upx
behavioral2/memory/396-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2992-53-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2692-55-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/396-56-0x0000000000400000-0x0000000000414000-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

Processes:

csrsll.exec61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exec61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.execmd.exereg.execsrsll.execsrsll.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.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

Processes:

csrsll.exe

description	pid	process
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exec61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.execsrsll.execsrsll.exe

pid	process
4700	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
2992	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
3008	csrsll.exe
2692	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exec61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.execmd.execsrsll.exe

description	pid	process	target process
PID 4700 wrote to memory of 2992	4700	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
PID 4700 wrote to memory of 2992	4700	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
PID 4700 wrote to memory of 2992	4700	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
PID 4700 wrote to memory of 2992	4700	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
PID 4700 wrote to memory of 2992	4700	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
PID 4700 wrote to memory of 2992	4700	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
PID 4700 wrote to memory of 2992	4700	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
PID 4700 wrote to memory of 2992	4700	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
PID 2992 wrote to memory of 4360	2992	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	cmd.exe
PID 2992 wrote to memory of 4360	2992	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	cmd.exe
PID 2992 wrote to memory of 4360	2992	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	cmd.exe
PID 4360 wrote to memory of 1412	4360	cmd.exe	reg.exe
PID 4360 wrote to memory of 1412	4360	cmd.exe	reg.exe
PID 4360 wrote to memory of 1412	4360	cmd.exe	reg.exe
PID 2992 wrote to memory of 3008	2992	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	csrsll.exe
PID 2992 wrote to memory of 3008	2992	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	csrsll.exe
PID 2992 wrote to memory of 3008	2992	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	csrsll.exe
PID 3008 wrote to memory of 2692	3008	csrsll.exe	csrsll.exe
PID 3008 wrote to memory of 2692	3008	csrsll.exe	csrsll.exe
PID 3008 wrote to memory of 2692	3008	csrsll.exe	csrsll.exe
PID 3008 wrote to memory of 2692	3008	csrsll.exe	csrsll.exe
PID 3008 wrote to memory of 2692	3008	csrsll.exe	csrsll.exe
PID 3008 wrote to memory of 2692	3008	csrsll.exe	csrsll.exe
PID 3008 wrote to memory of 2692	3008	csrsll.exe	csrsll.exe
PID 3008 wrote to memory of 2692	3008	csrsll.exe	csrsll.exe
PID 3008 wrote to memory of 396	3008	csrsll.exe	csrsll.exe
PID 3008 wrote to memory of 396	3008	csrsll.exe	csrsll.exe
PID 3008 wrote to memory of 396	3008	csrsll.exe	csrsll.exe
PID 3008 wrote to memory of 396	3008	csrsll.exe	csrsll.exe
PID 3008 wrote to memory of 396	3008	csrsll.exe	csrsll.exe
PID 3008 wrote to memory of 396	3008	csrsll.exe	csrsll.exe
PID 3008 wrote to memory of 396	3008	csrsll.exe	csrsll.exe
PID 3008 wrote to memory of 396	3008	csrsll.exe	csrsll.exe

C:\Users\Admin\AppData\Local\Temp\c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
"C:\Users\Admin\AppData\Local\Temp\c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4700
- C:\Users\Admin\AppData\Local\Temp\c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
  "C:\Users\Admin\AppData\Local\Temp\c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2992
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\HQXIE.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4360
  - - 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:1412
- - 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:3008
  - - 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:2692
  - - 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:396

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\HQXIE.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
338KB

MD5
8a543e0c9b43c0ace80ad3b678442eb8

SHA1
4bae6b3bec4705b6ca8e5106b1ddfbf2225f68a2

SHA256
7c9704470d1a911cb96eef9b6ef7fb8991fd95f855fbeab104c0d917bb3d42ce

SHA512
bcf9aaf1e09191266d843750147bd3a9835f303a245a3576aa27c55fd7616414ab95ea352e6c23a89b5057945116ad37fd82a51a97a24d21a8f579c3c21d4ad0

Download Submit
memory/396-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/396-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/396-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/396-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/396-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/396-41-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2692-55-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2692-42-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2992-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2992-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2992-5-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2992-53-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3008-36-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/3008-35-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/3008-51-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/4700-0-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/4700-8-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/4700-4-0x0000000002B90000-0x0000000002B91000-memory.dmp

Filesize
4KB

Download
memory/4700-3-0x0000000002310000-0x0000000002311000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads