modiloader | b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
20-12-2024 05:12

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General

Target

b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe
Size

90KB
MD5

9e3c66eef860342bb4b8c336b7feb350
SHA1

c227fe98e359ea6f79d859e262b6863372d9d809
SHA256

b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293
SHA512

6cb9be731e3fd039265f419d8dd85974f4b4edbd5117a774fb6a43723a23fd0a39ff77bafe1d2cc2cf750dacf87d080d2735951a7af94d6cc6fb782311d69959
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDb:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3x

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/1536-264-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2816	csrsll.exe
936	csrsll.exe
1536	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2176	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe
2176	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe
2176	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe
2176	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe
2176	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.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-1-5-21-3692679935-4019334568-335155002-1000\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 2772 set thread context of 2176	2772	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	30
PID 2816 set thread context of 936	2816	csrsll.exe	35
PID 2816 set thread context of 1536	2816	csrsll.exe	36

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2772-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2772-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2772-28-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2772-91-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2176-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2176-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2176-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2772-104-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2176-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2176-96-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2176-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2176-134-0x0000000002560000-0x00000000025B3000-memory.dmp	upx
behavioral1/files/0x002f000000015e5b-136.dat	upx
behavioral1/memory/2176-153-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2816-158-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2816-218-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2816-252-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1536-250-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2176-260-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/936-261-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1536-264-0x0000000000400000-0x0000000000414000-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	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.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 63 IoCs

description	pid	Process
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2772	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe
2176	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe
2816	csrsll.exe
936	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 2176	2772	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	30
PID 2772 wrote to memory of 2176	2772	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	30
PID 2772 wrote to memory of 2176	2772	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	30
PID 2772 wrote to memory of 2176	2772	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	30
PID 2772 wrote to memory of 2176	2772	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	30
PID 2772 wrote to memory of 2176	2772	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	30
PID 2772 wrote to memory of 2176	2772	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	30
PID 2772 wrote to memory of 2176	2772	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	30
PID 2176 wrote to memory of 1476	2176	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	31
PID 2176 wrote to memory of 1476	2176	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	31
PID 2176 wrote to memory of 1476	2176	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	31
PID 2176 wrote to memory of 1476	2176	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	31
PID 1476 wrote to memory of 2988	1476	cmd.exe	33
PID 1476 wrote to memory of 2988	1476	cmd.exe	33
PID 1476 wrote to memory of 2988	1476	cmd.exe	33
PID 1476 wrote to memory of 2988	1476	cmd.exe	33
PID 2176 wrote to memory of 2816	2176	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	34
PID 2176 wrote to memory of 2816	2176	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	34
PID 2176 wrote to memory of 2816	2176	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	34
PID 2176 wrote to memory of 2816	2176	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	34
PID 2816 wrote to memory of 936	2816	csrsll.exe	35
PID 2816 wrote to memory of 936	2816	csrsll.exe	35
PID 2816 wrote to memory of 936	2816	csrsll.exe	35
PID 2816 wrote to memory of 936	2816	csrsll.exe	35
PID 2816 wrote to memory of 936	2816	csrsll.exe	35
PID 2816 wrote to memory of 936	2816	csrsll.exe	35
PID 2816 wrote to memory of 936	2816	csrsll.exe	35
PID 2816 wrote to memory of 936	2816	csrsll.exe	35
PID 2816 wrote to memory of 1536	2816	csrsll.exe	36
PID 2816 wrote to memory of 1536	2816	csrsll.exe	36
PID 2816 wrote to memory of 1536	2816	csrsll.exe	36
PID 2816 wrote to memory of 1536	2816	csrsll.exe	36
PID 2816 wrote to memory of 1536	2816	csrsll.exe	36
PID 2816 wrote to memory of 1536	2816	csrsll.exe	36
PID 2816 wrote to memory of 1536	2816	csrsll.exe	36
PID 2816 wrote to memory of 1536	2816	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe
"C:\Users\Admin\AppData\Local\Temp\b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2772
- C:\Users\Admin\AppData\Local\Temp\b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe
  "C:\Users\Admin\AppData\Local\Temp\b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2176
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\SXIJH.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1476
  - - 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:2988
- - 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:2816
  - - 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:936
  - - 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:1536

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\SXIJH.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
92a7feed660a8f68664ec89d8b2f57ad

SHA1
2d0e1495eb58d06e20d757eecce159f5272cc9b1

SHA256
605a6c4c6152f2afb18fef6a548f8bbf2eb3952629050db9293751790ba3c0b8

SHA512
c38837fb1e11e23b16e3c9e97c76dcb5f1a6370f6a6fd33a815a4fae2d24fe0c8f91ba076a155530c68316bc9591a9c98f6b4847f2de6e7277eade29133939c0

Download Submit
memory/936-261-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1536-264-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1536-250-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2176-156-0x0000000002560000-0x00000000025B3000-memory.dmp

Filesize
332KB

Download
memory/2176-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2176-260-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2176-155-0x0000000002560000-0x00000000025B3000-memory.dmp

Filesize
332KB

Download
memory/2176-153-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2176-147-0x0000000002560000-0x00000000025B3000-memory.dmp

Filesize
332KB

Download
memory/2176-148-0x0000000002560000-0x00000000025B3000-memory.dmp

Filesize
332KB

Download
memory/2176-149-0x0000000002560000-0x00000000025B3000-memory.dmp

Filesize
332KB

Download
memory/2176-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2176-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2176-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2176-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2176-134-0x0000000002560000-0x00000000025B3000-memory.dmp

Filesize
332KB

Download
memory/2176-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2176-98-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2176-96-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2772-43-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2772-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2772-104-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2772-28-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2772-73-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download
memory/2772-81-0x0000000000390000-0x0000000000392000-memory.dmp

Filesize
8KB

Download
memory/2772-91-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2772-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2772-17-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2772-63-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/2772-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2772-7-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2772-31-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2772-21-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2816-171-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2816-252-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2816-218-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2816-182-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2816-161-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2816-158-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads