modiloader | d5f0b13af71028501c45b06aeaadf2fb99d0bb52aec799f35792b950c6d994bf

Analysis

max time kernel
119s
max time network
18s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
08/09/2024, 01:14

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General

Target

736a3f5837aa36f08eb2bf9b312211d0N.exe
Size

90KB
MD5

736a3f5837aa36f08eb2bf9b312211d0
SHA1

d66ed1d762a53ac2a4a669d7b5b6f3ddc00a5207
SHA256

d5f0b13af71028501c45b06aeaadf2fb99d0bb52aec799f35792b950c6d994bf
SHA512

d0e3a4c2c3b71fb239610709314f0c284aafd6952e77578fa3cdf4c43411fb1c262d775019e52afaa0628a486573ff55210bedca800e7d2e6ac018efa2b841a3
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 1 IoCs

resource	yara_rule
behavioral1/memory/1464-264-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2252	csrsll.exe
2004	csrsll.exe
1464	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2596	736a3f5837aa36f08eb2bf9b312211d0N.exe
2596	736a3f5837aa36f08eb2bf9b312211d0N.exe
2596	736a3f5837aa36f08eb2bf9b312211d0N.exe
2596	736a3f5837aa36f08eb2bf9b312211d0N.exe
2596	736a3f5837aa36f08eb2bf9b312211d0N.exe

UPX packed file 22 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2300-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2300-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2300-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2596-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2596-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2596-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2596-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2300-106-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2596-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2596-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2596-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000b00000001202b-132.dat	upx
behavioral1/memory/2596-134-0x0000000003220000-0x0000000003273000-memory.dmp	upx
behavioral1/memory/2252-151-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2596-154-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2252-222-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1464-250-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2252-256-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2596-260-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2252-249-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2004-261-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1464-264-0x0000000000400000-0x0000000000414000-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-1-5-21-1506706701-1246725540-2219210854-1000\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 2300 set thread context of 2596	2300	736a3f5837aa36f08eb2bf9b312211d0N.exe	29
PID 2252 set thread context of 2004	2252	csrsll.exe	34
PID 2252 set thread context of 1464	2252	csrsll.exe	35

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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	736a3f5837aa36f08eb2bf9b312211d0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	736a3f5837aa36f08eb2bf9b312211d0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe
Token: SeDebugPrivilege	2004	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2300	736a3f5837aa36f08eb2bf9b312211d0N.exe
2596	736a3f5837aa36f08eb2bf9b312211d0N.exe
2252	csrsll.exe
2004	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 2596	2300	736a3f5837aa36f08eb2bf9b312211d0N.exe	29
PID 2300 wrote to memory of 2596	2300	736a3f5837aa36f08eb2bf9b312211d0N.exe	29
PID 2300 wrote to memory of 2596	2300	736a3f5837aa36f08eb2bf9b312211d0N.exe	29
PID 2300 wrote to memory of 2596	2300	736a3f5837aa36f08eb2bf9b312211d0N.exe	29
PID 2300 wrote to memory of 2596	2300	736a3f5837aa36f08eb2bf9b312211d0N.exe	29
PID 2300 wrote to memory of 2596	2300	736a3f5837aa36f08eb2bf9b312211d0N.exe	29
PID 2300 wrote to memory of 2596	2300	736a3f5837aa36f08eb2bf9b312211d0N.exe	29
PID 2300 wrote to memory of 2596	2300	736a3f5837aa36f08eb2bf9b312211d0N.exe	29
PID 2596 wrote to memory of 2188	2596	736a3f5837aa36f08eb2bf9b312211d0N.exe	30
PID 2596 wrote to memory of 2188	2596	736a3f5837aa36f08eb2bf9b312211d0N.exe	30
PID 2596 wrote to memory of 2188	2596	736a3f5837aa36f08eb2bf9b312211d0N.exe	30
PID 2596 wrote to memory of 2188	2596	736a3f5837aa36f08eb2bf9b312211d0N.exe	30
PID 2188 wrote to memory of 3008	2188	cmd.exe	32
PID 2188 wrote to memory of 3008	2188	cmd.exe	32
PID 2188 wrote to memory of 3008	2188	cmd.exe	32
PID 2188 wrote to memory of 3008	2188	cmd.exe	32
PID 2596 wrote to memory of 2252	2596	736a3f5837aa36f08eb2bf9b312211d0N.exe	33
PID 2596 wrote to memory of 2252	2596	736a3f5837aa36f08eb2bf9b312211d0N.exe	33
PID 2596 wrote to memory of 2252	2596	736a3f5837aa36f08eb2bf9b312211d0N.exe	33
PID 2596 wrote to memory of 2252	2596	736a3f5837aa36f08eb2bf9b312211d0N.exe	33
PID 2252 wrote to memory of 2004	2252	csrsll.exe	34
PID 2252 wrote to memory of 2004	2252	csrsll.exe	34
PID 2252 wrote to memory of 2004	2252	csrsll.exe	34
PID 2252 wrote to memory of 2004	2252	csrsll.exe	34
PID 2252 wrote to memory of 2004	2252	csrsll.exe	34
PID 2252 wrote to memory of 2004	2252	csrsll.exe	34
PID 2252 wrote to memory of 2004	2252	csrsll.exe	34
PID 2252 wrote to memory of 2004	2252	csrsll.exe	34
PID 2252 wrote to memory of 1464	2252	csrsll.exe	35
PID 2252 wrote to memory of 1464	2252	csrsll.exe	35
PID 2252 wrote to memory of 1464	2252	csrsll.exe	35
PID 2252 wrote to memory of 1464	2252	csrsll.exe	35
PID 2252 wrote to memory of 1464	2252	csrsll.exe	35
PID 2252 wrote to memory of 1464	2252	csrsll.exe	35
PID 2252 wrote to memory of 1464	2252	csrsll.exe	35
PID 2252 wrote to memory of 1464	2252	csrsll.exe	35

C:\Users\Admin\AppData\Local\Temp\736a3f5837aa36f08eb2bf9b312211d0N.exe
"C:\Users\Admin\AppData\Local\Temp\736a3f5837aa36f08eb2bf9b312211d0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Users\Admin\AppData\Local\Temp\736a3f5837aa36f08eb2bf9b312211d0N.exe
  "C:\Users\Admin\AppData\Local\Temp\736a3f5837aa36f08eb2bf9b312211d0N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2596
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\JFERI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2188
  - - 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:3008
- - 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:2252
  - - 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:2004
  - - 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:1464

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\JFERI.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
6914c17b2c4413df3dd09201a94c4a40

SHA1
ab6b29cccc20a0dc81f6e3042c0ed0de5a24af6b

SHA256
648cf2da77ace82151a778ba1108022d693561d1b251dfee56d44bb12cc8c427

SHA512
3f7a7497a32144c6479fc00cf69c1a246ba20dc34a795d6f1ad673fb1705f647c91dc79fc2304109d3feba5e4272a7a30731ab2bb082a9d1ebd5b5d4dc775ed4

Download Submit
memory/1464-264-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1464-250-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2004-261-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2252-249-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2252-256-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2252-168-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2252-222-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2252-179-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download
memory/2252-158-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2252-151-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2300-71-0x0000000000540000-0x0000000000541000-memory.dmp

Filesize
4KB

Download
memory/2300-79-0x00000000007F0000-0x00000000007F2000-memory.dmp

Filesize
8KB

Download
memory/2300-5-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2300-3-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2300-17-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2300-15-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2300-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2300-106-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2300-61-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2300-41-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/2300-29-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/2300-90-0x0000000002610000-0x0000000002663000-memory.dmp

Filesize
332KB

Download
memory/2300-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2300-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2596-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-216-0x0000000003220000-0x0000000003273000-memory.dmp

Filesize
332KB

Download
memory/2596-147-0x0000000003220000-0x0000000003273000-memory.dmp

Filesize
332KB

Download
memory/2596-149-0x0000000003220000-0x0000000003273000-memory.dmp

Filesize
332KB

Download
memory/2596-154-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-155-0x0000000003220000-0x0000000003273000-memory.dmp

Filesize
332KB

Download
memory/2596-134-0x0000000003220000-0x0000000003273000-memory.dmp

Filesize
332KB

Download
memory/2596-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-148-0x0000000003220000-0x0000000003273000-memory.dmp

Filesize
332KB

Download
memory/2596-215-0x0000000003220000-0x0000000003273000-memory.dmp

Filesize
332KB

Download
memory/2596-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2596-260-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads