modiloader | 5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06

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
01/12/2024, 00:10

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General

Target

5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe
Size

90KB
MD5

271bc05151d39a55b79e153034f9e6f0
SHA1

9a33ee456e5b388e1dc6f0fa132ac0d5afdf3a96
SHA256

5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06
SHA512

03bf47200dc776d93719426ffc777336452fb137fe087b41067680775699872b512501ed94309c0d2bc003c7b9faa909520b091c663ffb2a98f3fba189ef6487
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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/4480-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4480-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4480-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4480-63-0x0000000000400000-0x0000000000414000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe

Executes dropped EXE 3 IoCs

pid	Process
400	csrsll.exe
4116	csrsll.exe
4480	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-1-5-21-3756129449-3121373848-4276368241-1000\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 4600 set thread context of 1912	4600	5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe	82
PID 400 set thread context of 4116	400	csrsll.exe	93
PID 400 set thread context of 4480	400	csrsll.exe	94

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4600-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4600-6-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1912-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1912-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4600-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1912-14-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b98-30.dat	upx
behavioral2/memory/1912-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/400-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/400-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4480-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4480-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4480-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4480-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/400-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4480-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1912-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4116-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4480-63-0x0000000000400000-0x0000000000414000-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	5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.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	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe
Token: SeDebugPrivilege	4116	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4600	5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe
1912	5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe
400	csrsll.exe
4116	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4600 wrote to memory of 1912	4600	5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe	82
PID 4600 wrote to memory of 1912	4600	5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe	82
PID 4600 wrote to memory of 1912	4600	5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe	82
PID 4600 wrote to memory of 1912	4600	5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe	82
PID 4600 wrote to memory of 1912	4600	5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe	82
PID 4600 wrote to memory of 1912	4600	5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe	82
PID 4600 wrote to memory of 1912	4600	5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe	82
PID 4600 wrote to memory of 1912	4600	5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe	82
PID 1912 wrote to memory of 4184	1912	5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe	83
PID 1912 wrote to memory of 4184	1912	5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe	83
PID 1912 wrote to memory of 4184	1912	5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe	83
PID 4184 wrote to memory of 3388	4184	cmd.exe	86
PID 4184 wrote to memory of 3388	4184	cmd.exe	86
PID 4184 wrote to memory of 3388	4184	cmd.exe	86
PID 1912 wrote to memory of 400	1912	5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe	87
PID 1912 wrote to memory of 400	1912	5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe	87
PID 1912 wrote to memory of 400	1912	5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe	87
PID 400 wrote to memory of 4116	400	csrsll.exe	93
PID 400 wrote to memory of 4116	400	csrsll.exe	93
PID 400 wrote to memory of 4116	400	csrsll.exe	93
PID 400 wrote to memory of 4116	400	csrsll.exe	93
PID 400 wrote to memory of 4116	400	csrsll.exe	93
PID 400 wrote to memory of 4116	400	csrsll.exe	93
PID 400 wrote to memory of 4116	400	csrsll.exe	93
PID 400 wrote to memory of 4116	400	csrsll.exe	93
PID 400 wrote to memory of 4480	400	csrsll.exe	94
PID 400 wrote to memory of 4480	400	csrsll.exe	94
PID 400 wrote to memory of 4480	400	csrsll.exe	94
PID 400 wrote to memory of 4480	400	csrsll.exe	94
PID 400 wrote to memory of 4480	400	csrsll.exe	94
PID 400 wrote to memory of 4480	400	csrsll.exe	94
PID 400 wrote to memory of 4480	400	csrsll.exe	94
PID 400 wrote to memory of 4480	400	csrsll.exe	94

C:\Users\Admin\AppData\Local\Temp\5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe
"C:\Users\Admin\AppData\Local\Temp\5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4600
- C:\Users\Admin\AppData\Local\Temp\5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe
  "C:\Users\Admin\AppData\Local\Temp\5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1912
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\QEFAB.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4184
  - - 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:3388
- - 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:400
  - - 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:4116
  - - 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:4480

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\QEFAB.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
271bc05151d39a55b79e153034f9e6f0

SHA1
9a33ee456e5b388e1dc6f0fa132ac0d5afdf3a96

SHA256
5c47d75ef4b83402bbcb94f4b26eef03d622a45ec8b1fbb70bb2313c4e8f6a06

SHA512
03bf47200dc776d93719426ffc777336452fb137fe087b41067680775699872b512501ed94309c0d2bc003c7b9faa909520b091c663ffb2a98f3fba189ef6487

Download Submit
memory/400-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/400-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/400-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1912-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1912-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1912-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1912-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1912-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1912-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4116-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4480-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4480-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4480-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4480-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4480-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4480-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4600-4-0x0000000002C70000-0x0000000002C72000-memory.dmp

Filesize
8KB

Download
memory/4600-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/4600-7-0x0000000002CA0000-0x0000000002CA2000-memory.dmp

Filesize
8KB

Download
memory/4600-6-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4600-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4600-5-0x0000000002C80000-0x0000000002C82000-memory.dmp

Filesize
8KB

Download
memory/4600-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads