modiloader | 8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b

Analysis

max time kernel
119s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-12-2024 01:39

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General

Target

8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe
Size

90KB
MD5

20e7a4ddfcde01266f9628329db255c7
SHA1

479fcfe84a874104dbc408724b9fc04df879ac76
SHA256

8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b
SHA512

adc1dafe207293d6bdafe44a49b9706cdf6e181d3884b41a0403168c47073e39e78a6d5396627866b9182b830b40de87f5aea39b25fd99c8d23c6f1c720fa770
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDo:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3O

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 1 IoCs

resource	yara_rule
behavioral1/memory/2416-262-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2608	csrsll.exe
828	csrsll.exe
2416	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2640	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe
2640	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe
2640	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe
2640	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe
2640	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.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-1-5-21-1846800975-3917212583-2893086201-1000\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 2172 set thread context of 2640	2172	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	30
PID 2608 set thread context of 828	2608	csrsll.exe	35
PID 2608 set thread context of 2416	2608	csrsll.exe	36

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2172-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2172-91-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2172-86-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2172-81-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2172-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2640-108-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2640-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2640-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2172-103-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2640-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2640-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2640-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000c00000001227d-133.dat	upx
behavioral1/memory/2640-135-0x0000000003160000-0x00000000031B3000-memory.dmp	upx
behavioral1/memory/2640-154-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2608-224-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2416-250-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2608-252-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2640-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/828-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2416-262-0x0000000000400000-0x0000000000414000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe
Token: SeDebugPrivilege	828	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2172	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe
2640	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe
2608	csrsll.exe
828	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 2640	2172	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	30
PID 2172 wrote to memory of 2640	2172	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	30
PID 2172 wrote to memory of 2640	2172	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	30
PID 2172 wrote to memory of 2640	2172	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	30
PID 2172 wrote to memory of 2640	2172	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	30
PID 2172 wrote to memory of 2640	2172	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	30
PID 2172 wrote to memory of 2640	2172	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	30
PID 2172 wrote to memory of 2640	2172	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	30
PID 2640 wrote to memory of 2884	2640	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	31
PID 2640 wrote to memory of 2884	2640	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	31
PID 2640 wrote to memory of 2884	2640	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	31
PID 2640 wrote to memory of 2884	2640	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	31
PID 2884 wrote to memory of 2948	2884	cmd.exe	33
PID 2884 wrote to memory of 2948	2884	cmd.exe	33
PID 2884 wrote to memory of 2948	2884	cmd.exe	33
PID 2884 wrote to memory of 2948	2884	cmd.exe	33
PID 2640 wrote to memory of 2608	2640	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	34
PID 2640 wrote to memory of 2608	2640	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	34
PID 2640 wrote to memory of 2608	2640	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	34
PID 2640 wrote to memory of 2608	2640	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	34
PID 2608 wrote to memory of 828	2608	csrsll.exe	35
PID 2608 wrote to memory of 828	2608	csrsll.exe	35
PID 2608 wrote to memory of 828	2608	csrsll.exe	35
PID 2608 wrote to memory of 828	2608	csrsll.exe	35
PID 2608 wrote to memory of 828	2608	csrsll.exe	35
PID 2608 wrote to memory of 828	2608	csrsll.exe	35
PID 2608 wrote to memory of 828	2608	csrsll.exe	35
PID 2608 wrote to memory of 828	2608	csrsll.exe	35
PID 2608 wrote to memory of 2416	2608	csrsll.exe	36
PID 2608 wrote to memory of 2416	2608	csrsll.exe	36
PID 2608 wrote to memory of 2416	2608	csrsll.exe	36
PID 2608 wrote to memory of 2416	2608	csrsll.exe	36
PID 2608 wrote to memory of 2416	2608	csrsll.exe	36
PID 2608 wrote to memory of 2416	2608	csrsll.exe	36
PID 2608 wrote to memory of 2416	2608	csrsll.exe	36
PID 2608 wrote to memory of 2416	2608	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe
"C:\Users\Admin\AppData\Local\Temp\8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Users\Admin\AppData\Local\Temp\8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe
  "C:\Users\Admin\AppData\Local\Temp\8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2640
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\RNBOW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2884
  - - 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:2948
- - 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:2608
  - - 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:828
  - - 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:2416

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

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\RNBOW.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
e5b70f4356b9b5be0acdfd619348464a

SHA1
9b25c3ccaec2ab1624cdb55feae9a4433b71b449

SHA256
a8069a556b7fda2814c169846de6a54a30711fae8070afe76eb6ccb0aeb0cf4c

SHA512
05f0ccaf8056062596d94520fe1bbd0a41d18ca362f03a7a7ff39bb517a4077876adfdba8d50d60065f88b45b0d2e503943f89b32be93eef31bea4f8cbeb9fa7

Download Submit
memory/828-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2172-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2172-41-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2172-86-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2172-81-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2172-79-0x00000000003E0000-0x00000000003E2000-memory.dmp

Filesize
8KB

Download
memory/2172-71-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/2172-61-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/2172-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2172-29-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2172-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2172-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2172-91-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2172-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2172-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2172-103-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2172-92-0x0000000001D60000-0x0000000001DB3000-memory.dmp

Filesize
332KB

Download
memory/2416-262-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2416-250-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2608-167-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2608-178-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2608-224-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2608-252-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2608-157-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2640-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2640-150-0x0000000003160000-0x00000000031B3000-memory.dmp

Filesize
332KB

Download
memory/2640-149-0x0000000003160000-0x00000000031B3000-memory.dmp

Filesize
332KB

Download
memory/2640-148-0x0000000003160000-0x00000000031B3000-memory.dmp

Filesize
332KB

Download
memory/2640-154-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2640-135-0x0000000003160000-0x00000000031B3000-memory.dmp

Filesize
332KB

Download
memory/2640-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2640-219-0x0000000003160000-0x00000000031B3000-memory.dmp

Filesize
332KB

Download
memory/2640-212-0x0000000003160000-0x00000000031B3000-memory.dmp

Filesize
332KB

Download
memory/2640-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2640-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2640-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2640-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2640-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2640-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2640-108-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads