modiloader | 43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2

Analysis

max time kernel
149s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-11-2024 21:54

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General

Target

43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe
Size

90KB
MD5

73cbaa9be5eef904f87cd39e80ae4020
SHA1

8cb75e4599238f0d882728f949eb5970e8f8e4ea
SHA256

43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2
SHA512

81bac33cf7780453b499238dd88c231af10ef3dc101bbb931693ac6181ba53604d3ec4947d6d1b479890275074e80e1378fd66e05f1c5951b22595e3d766b194
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/4204-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4204-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4204-61-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4204-63-0x0000000000400000-0x0000000000414000-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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe

Executes dropped EXE 3 IoCs

pid	Process
4856	csrsll.exe
4552	csrsll.exe
4204	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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3988 set thread context of 3288	3988	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	92
PID 4856 set thread context of 4552	4856	csrsll.exe	100
PID 4856 set thread context of 4204	4856	csrsll.exe	101

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3988-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3988-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3288-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3288-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3988-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3288-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0011000000023b77-29.dat	upx
behavioral2/memory/4856-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3288-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4856-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4856-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4204-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4204-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4204-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4204-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3288-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4856-54-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4204-61-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4552-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4204-63-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.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	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe
Token: SeDebugPrivilege	4552	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3988	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe
3288	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe
4856	csrsll.exe
4552	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3988 wrote to memory of 3288	3988	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	92
PID 3988 wrote to memory of 3288	3988	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	92
PID 3988 wrote to memory of 3288	3988	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	92
PID 3988 wrote to memory of 3288	3988	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	92
PID 3988 wrote to memory of 3288	3988	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	92
PID 3988 wrote to memory of 3288	3988	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	92
PID 3988 wrote to memory of 3288	3988	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	92
PID 3988 wrote to memory of 3288	3988	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	92
PID 3288 wrote to memory of 544	3288	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	93
PID 3288 wrote to memory of 544	3288	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	93
PID 3288 wrote to memory of 544	3288	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	93
PID 544 wrote to memory of 5076	544	cmd.exe	96
PID 544 wrote to memory of 5076	544	cmd.exe	96
PID 544 wrote to memory of 5076	544	cmd.exe	96
PID 3288 wrote to memory of 4856	3288	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	97
PID 3288 wrote to memory of 4856	3288	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	97
PID 3288 wrote to memory of 4856	3288	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	97
PID 4856 wrote to memory of 4552	4856	csrsll.exe	100
PID 4856 wrote to memory of 4552	4856	csrsll.exe	100
PID 4856 wrote to memory of 4552	4856	csrsll.exe	100
PID 4856 wrote to memory of 4552	4856	csrsll.exe	100
PID 4856 wrote to memory of 4552	4856	csrsll.exe	100
PID 4856 wrote to memory of 4552	4856	csrsll.exe	100
PID 4856 wrote to memory of 4552	4856	csrsll.exe	100
PID 4856 wrote to memory of 4552	4856	csrsll.exe	100
PID 4856 wrote to memory of 4204	4856	csrsll.exe	101
PID 4856 wrote to memory of 4204	4856	csrsll.exe	101
PID 4856 wrote to memory of 4204	4856	csrsll.exe	101
PID 4856 wrote to memory of 4204	4856	csrsll.exe	101
PID 4856 wrote to memory of 4204	4856	csrsll.exe	101
PID 4856 wrote to memory of 4204	4856	csrsll.exe	101
PID 4856 wrote to memory of 4204	4856	csrsll.exe	101
PID 4856 wrote to memory of 4204	4856	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe
"C:\Users\Admin\AppData\Local\Temp\43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3988
- C:\Users\Admin\AppData\Local\Temp\43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe
  "C:\Users\Admin\AppData\Local\Temp\43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3288
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KXGHS.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:544
  - - 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:5076
- - 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:4856
  - - 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:4552
  - - 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:4204

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\KXGHS.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
fa21acb503c6be195ff2726904952dd9

SHA1
b7bd7b175a9d59db693ec74caea7145bb1691739

SHA256
4e3ce8bbb64b133104d9890d5e71948f2a19dbe9ed49634d67d268716d1fe4b7

SHA512
00a504bd9731491f21638c48cc5a58c9cc8db716e356d25da1b4fd7da6e6e3722eae3ef65fc2800fbfe1bbdcc084801397c24b9ed1822fbf9af148065b14e6de

Download Submit
memory/3288-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3288-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3288-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3288-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3288-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3988-5-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/3988-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/3988-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3988-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3988-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3988-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/4204-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4204-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4204-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4204-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4204-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4204-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4552-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4856-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4856-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4856-54-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4856-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads