modiloader | 7853d7f6e117ba9b88f07e412b51a6e791f935a322b7c36dd584f3e5f59b5856

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20240910-en
resource tags

arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
submitted
13/09/2024, 13:17

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General

Target

ac533c173cdda6f4aca63272eb21ef00N.exe
Size

90KB
MD5

ac533c173cdda6f4aca63272eb21ef00
SHA1

ff725870cf0232b72f2a72383af2a2cd868f38a1
SHA256

7853d7f6e117ba9b88f07e412b51a6e791f935a322b7c36dd584f3e5f59b5856
SHA512

a811c5868ba386755bfc358872a92a0baf3cd032a9b0bc26bd80ca413f39aaaa0f1279867dca0722d9ef45ea10dbb58114823c71cbd13291e2993bfb290e166e
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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/2004-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2004-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2004-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2004-61-0x0000000000400000-0x0000000000414000-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-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	ac533c173cdda6f4aca63272eb21ef00N.exe

Executes dropped EXE 3 IoCs

pid	Process
4392	csrsll.exe
4952	csrsll.exe
2004	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/916-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/916-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2416-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/916-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2416-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2416-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000f000000023ba7-29.dat	upx
behavioral2/memory/4392-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2416-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4392-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4392-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2004-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2004-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4392-54-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2004-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2004-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2004-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2416-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4952-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2004-61-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-2629364133-3182087385-364449604-1000\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 916 set thread context of 2416	916	ac533c173cdda6f4aca63272eb21ef00N.exe	86
PID 4392 set thread context of 4952	4392	csrsll.exe	92
PID 4392 set thread context of 2004	4392	csrsll.exe	93

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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ac533c173cdda6f4aca63272eb21ef00N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ac533c173cdda6f4aca63272eb21ef00N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe
Token: SeDebugPrivilege	4952	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
916	ac533c173cdda6f4aca63272eb21ef00N.exe
2416	ac533c173cdda6f4aca63272eb21ef00N.exe
4392	csrsll.exe
4952	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 916 wrote to memory of 2416	916	ac533c173cdda6f4aca63272eb21ef00N.exe	86
PID 916 wrote to memory of 2416	916	ac533c173cdda6f4aca63272eb21ef00N.exe	86
PID 916 wrote to memory of 2416	916	ac533c173cdda6f4aca63272eb21ef00N.exe	86
PID 916 wrote to memory of 2416	916	ac533c173cdda6f4aca63272eb21ef00N.exe	86
PID 916 wrote to memory of 2416	916	ac533c173cdda6f4aca63272eb21ef00N.exe	86
PID 916 wrote to memory of 2416	916	ac533c173cdda6f4aca63272eb21ef00N.exe	86
PID 916 wrote to memory of 2416	916	ac533c173cdda6f4aca63272eb21ef00N.exe	86
PID 916 wrote to memory of 2416	916	ac533c173cdda6f4aca63272eb21ef00N.exe	86
PID 2416 wrote to memory of 4696	2416	ac533c173cdda6f4aca63272eb21ef00N.exe	87
PID 2416 wrote to memory of 4696	2416	ac533c173cdda6f4aca63272eb21ef00N.exe	87
PID 2416 wrote to memory of 4696	2416	ac533c173cdda6f4aca63272eb21ef00N.exe	87
PID 4696 wrote to memory of 2880	4696	cmd.exe	90
PID 4696 wrote to memory of 2880	4696	cmd.exe	90
PID 4696 wrote to memory of 2880	4696	cmd.exe	90
PID 2416 wrote to memory of 4392	2416	ac533c173cdda6f4aca63272eb21ef00N.exe	91
PID 2416 wrote to memory of 4392	2416	ac533c173cdda6f4aca63272eb21ef00N.exe	91
PID 2416 wrote to memory of 4392	2416	ac533c173cdda6f4aca63272eb21ef00N.exe	91
PID 4392 wrote to memory of 4952	4392	csrsll.exe	92
PID 4392 wrote to memory of 4952	4392	csrsll.exe	92
PID 4392 wrote to memory of 4952	4392	csrsll.exe	92
PID 4392 wrote to memory of 4952	4392	csrsll.exe	92
PID 4392 wrote to memory of 4952	4392	csrsll.exe	92
PID 4392 wrote to memory of 4952	4392	csrsll.exe	92
PID 4392 wrote to memory of 4952	4392	csrsll.exe	92
PID 4392 wrote to memory of 4952	4392	csrsll.exe	92
PID 4392 wrote to memory of 2004	4392	csrsll.exe	93
PID 4392 wrote to memory of 2004	4392	csrsll.exe	93
PID 4392 wrote to memory of 2004	4392	csrsll.exe	93
PID 4392 wrote to memory of 2004	4392	csrsll.exe	93
PID 4392 wrote to memory of 2004	4392	csrsll.exe	93
PID 4392 wrote to memory of 2004	4392	csrsll.exe	93
PID 4392 wrote to memory of 2004	4392	csrsll.exe	93
PID 4392 wrote to memory of 2004	4392	csrsll.exe	93

C:\Users\Admin\AppData\Local\Temp\ac533c173cdda6f4aca63272eb21ef00N.exe
"C:\Users\Admin\AppData\Local\Temp\ac533c173cdda6f4aca63272eb21ef00N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:916
- C:\Users\Admin\AppData\Local\Temp\ac533c173cdda6f4aca63272eb21ef00N.exe
  "C:\Users\Admin\AppData\Local\Temp\ac533c173cdda6f4aca63272eb21ef00N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2416
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JSPKT.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4696
  - - 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:2880
- - 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:4392
  - - 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:4952
  - - 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:2004

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\JSPKT.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
4df718c5d0e91df709c7ba1e68e4beb7

SHA1
888274d3e9bc910865f3a63fdb85ca7e8275123a

SHA256
703e2d7fc432f75665a28395ae7d8e44d7e251d3ec24b7e3c27bc4873a51ae7e

SHA512
78d671010eaf9489b507014eb4fbdae5c3633239133013d00637c913233e69f8f852adc45ea16e822c8b3384ed37aca5451b942c669a0178108bf1689bb87093

Download Submit
memory/916-3-0x0000000002A20000-0x0000000002A22000-memory.dmp

Filesize
8KB

Download
memory/916-4-0x0000000002A30000-0x0000000002A32000-memory.dmp

Filesize
8KB

Download
memory/916-6-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/916-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/916-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/916-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2004-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2004-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2004-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2004-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2004-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2004-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2416-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2416-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2416-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2416-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2416-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4392-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4392-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4392-54-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4392-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4952-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads