modiloader | a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc

Analysis

max time kernel
149s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-12-2024 14:16

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General

Target

a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe
Size

90KB
MD5

a14bcaadde880343729bb13b85936cff
SHA1

8a159f6330674e1704103ec45729782457624f22
SHA256

a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc
SHA512

873a5d531d5d64dbb2d9573e4d4cc4fe1d0fec74ef2d59fa7cd648fbc795c36da5e6f3445bf2c307274183dc5b327bd2a7b7f6dd4b2b545b3a342ecffe60a743
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDj:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3F

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 2 IoCs

resource	yara_rule
behavioral1/memory/1744-251-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/1744-258-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
848	csrsll.exe
1744	csrsll.exe
2440	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2360	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe
2360	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe
2360	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe
2360	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe
2360	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.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-1-5-21-312935884-697965778-3955649944-1000\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 2792 set thread context of 2360	2792	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	30
PID 848 set thread context of 2440	848	csrsll.exe	35
PID 848 set thread context of 1744	848	csrsll.exe	36

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2792-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2792-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2792-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2360-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2360-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2360-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2360-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2360-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2360-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2792-105-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x0033000000017474-130.dat	upx
behavioral1/memory/2360-151-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/848-213-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2360-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/848-254-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2440-252-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1744-251-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/848-250-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1744-258-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2440-259-0x0000000000400000-0x000000000040B000-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	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.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	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe
Token: SeDebugPrivilege	2440	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2792	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe
2360	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe
848	csrsll.exe
2440	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 2360	2792	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	30
PID 2792 wrote to memory of 2360	2792	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	30
PID 2792 wrote to memory of 2360	2792	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	30
PID 2792 wrote to memory of 2360	2792	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	30
PID 2792 wrote to memory of 2360	2792	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	30
PID 2792 wrote to memory of 2360	2792	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	30
PID 2792 wrote to memory of 2360	2792	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	30
PID 2792 wrote to memory of 2360	2792	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	30
PID 2360 wrote to memory of 1428	2360	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	31
PID 2360 wrote to memory of 1428	2360	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	31
PID 2360 wrote to memory of 1428	2360	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	31
PID 2360 wrote to memory of 1428	2360	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	31
PID 1428 wrote to memory of 772	1428	cmd.exe	33
PID 1428 wrote to memory of 772	1428	cmd.exe	33
PID 1428 wrote to memory of 772	1428	cmd.exe	33
PID 1428 wrote to memory of 772	1428	cmd.exe	33
PID 2360 wrote to memory of 848	2360	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	34
PID 2360 wrote to memory of 848	2360	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	34
PID 2360 wrote to memory of 848	2360	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	34
PID 2360 wrote to memory of 848	2360	a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe	34
PID 848 wrote to memory of 2440	848	csrsll.exe	35
PID 848 wrote to memory of 2440	848	csrsll.exe	35
PID 848 wrote to memory of 2440	848	csrsll.exe	35
PID 848 wrote to memory of 2440	848	csrsll.exe	35
PID 848 wrote to memory of 2440	848	csrsll.exe	35
PID 848 wrote to memory of 2440	848	csrsll.exe	35
PID 848 wrote to memory of 2440	848	csrsll.exe	35
PID 848 wrote to memory of 2440	848	csrsll.exe	35
PID 848 wrote to memory of 1744	848	csrsll.exe	36
PID 848 wrote to memory of 1744	848	csrsll.exe	36
PID 848 wrote to memory of 1744	848	csrsll.exe	36
PID 848 wrote to memory of 1744	848	csrsll.exe	36
PID 848 wrote to memory of 1744	848	csrsll.exe	36
PID 848 wrote to memory of 1744	848	csrsll.exe	36
PID 848 wrote to memory of 1744	848	csrsll.exe	36
PID 848 wrote to memory of 1744	848	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe
"C:\Users\Admin\AppData\Local\Temp\a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2792
- C:\Users\Admin\AppData\Local\Temp\a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe
  "C:\Users\Admin\AppData\Local\Temp\a47e64bd4b9f4249c526c0135aa9701154b55dd421d584034c2f0c2a36f140cc.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2360
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\KXBLR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1428
  - - 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:772
- - 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:848
  - - 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:2440
  - - 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:1744

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\KXBLR.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
630a2d003f47052b10f4e8e775304ac8

SHA1
30b95ab870838d82737605b6e532374bd607824a

SHA256
f88382c6c64653021a5a36cba0adcc7d6704538e32873e618fea82f96aaeaf28

SHA512
a5f0e71994257a360db5cea6ec2124575a4d9b1097334293bbe535a5dd6b0f69a99ef3604934bdf29adc2b7fc94458a4255270cb4b2924c15c868efdc8d4aac5

Download Submit
memory/848-250-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/848-254-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/848-165-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/848-176-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/848-213-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/848-155-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1744-258-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1744-251-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2360-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2360-147-0x0000000001EC0000-0x0000000001F13000-memory.dmp

Filesize
332KB

Download
memory/2360-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2360-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2360-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2360-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2360-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2360-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2360-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2360-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2360-212-0x0000000001EC0000-0x0000000001F13000-memory.dmp

Filesize
332KB

Download
memory/2360-152-0x0000000001EB0000-0x0000000001F03000-memory.dmp

Filesize
332KB

Download
memory/2360-151-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2360-148-0x0000000001EC0000-0x0000000001F13000-memory.dmp

Filesize
332KB

Download
memory/2360-140-0x0000000001EB0000-0x0000000001F03000-memory.dmp

Filesize
332KB

Download
memory/2360-146-0x0000000001EC0000-0x0000000001F13000-memory.dmp

Filesize
332KB

Download
memory/2440-252-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2440-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2792-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2792-96-0x00000000025C0000-0x0000000002613000-memory.dmp

Filesize
332KB

Download
memory/2792-29-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2792-41-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2792-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2792-61-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/2792-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2792-105-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2792-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2792-79-0x0000000000390000-0x0000000000392000-memory.dmp

Filesize
8KB

Download
memory/2792-21-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2792-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2792-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2792-71-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads