modiloader | c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8

Analysis

max time kernel
118s
max time network
117s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
12-01-2025 02:24

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General

Target

c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe
Size

90KB
MD5

9a3aec8f1358097b875706a96b5f7ca6
SHA1

b1ee427673c24336d00c64c2e819c48814be11fe
SHA256

c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8
SHA512

4dfc32010a8c8493a363c51f02879b1bc5e37602ca1adbfa62b971c07999e548fa59daf00d0a160e554902734d9b32d28666156dc7f1c8837c442405f7b1efe0
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDC:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE34

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/1548-256-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
340	csrsll.exe
2292	csrsll.exe
1548	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2576	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe
2576	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe
2576	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe
2576	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe
2576	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.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-1-5-21-3551809350-4263495960-1443967649-1000\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 2248 set thread context of 2576	2248	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	30
PID 340 set thread context of 2292	340	csrsll.exe	35
PID 340 set thread context of 1548	340	csrsll.exe	36

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2248-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2248-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2248-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2576-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2248-106-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2576-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2576-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2576-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2576-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2576-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000a0000000120fb-131.dat	upx
behavioral1/memory/2576-150-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/340-206-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1548-242-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/340-246-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2576-249-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2292-253-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1548-256-0x0000000000400000-0x0000000000414000-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	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.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
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	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe
Token: SeDebugPrivilege	2292	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2248	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe
2576	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe
340	csrsll.exe
2292	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2248 wrote to memory of 2576	2248	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	30
PID 2248 wrote to memory of 2576	2248	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	30
PID 2248 wrote to memory of 2576	2248	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	30
PID 2248 wrote to memory of 2576	2248	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	30
PID 2248 wrote to memory of 2576	2248	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	30
PID 2248 wrote to memory of 2576	2248	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	30
PID 2248 wrote to memory of 2576	2248	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	30
PID 2248 wrote to memory of 2576	2248	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	30
PID 2576 wrote to memory of 2928	2576	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	31
PID 2576 wrote to memory of 2928	2576	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	31
PID 2576 wrote to memory of 2928	2576	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	31
PID 2576 wrote to memory of 2928	2576	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	31
PID 2928 wrote to memory of 2840	2928	cmd.exe	33
PID 2928 wrote to memory of 2840	2928	cmd.exe	33
PID 2928 wrote to memory of 2840	2928	cmd.exe	33
PID 2928 wrote to memory of 2840	2928	cmd.exe	33
PID 2576 wrote to memory of 340	2576	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	34
PID 2576 wrote to memory of 340	2576	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	34
PID 2576 wrote to memory of 340	2576	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	34
PID 2576 wrote to memory of 340	2576	c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe	34
PID 340 wrote to memory of 2292	340	csrsll.exe	35
PID 340 wrote to memory of 2292	340	csrsll.exe	35
PID 340 wrote to memory of 2292	340	csrsll.exe	35
PID 340 wrote to memory of 2292	340	csrsll.exe	35
PID 340 wrote to memory of 2292	340	csrsll.exe	35
PID 340 wrote to memory of 2292	340	csrsll.exe	35
PID 340 wrote to memory of 2292	340	csrsll.exe	35
PID 340 wrote to memory of 2292	340	csrsll.exe	35
PID 340 wrote to memory of 1548	340	csrsll.exe	36
PID 340 wrote to memory of 1548	340	csrsll.exe	36
PID 340 wrote to memory of 1548	340	csrsll.exe	36
PID 340 wrote to memory of 1548	340	csrsll.exe	36
PID 340 wrote to memory of 1548	340	csrsll.exe	36
PID 340 wrote to memory of 1548	340	csrsll.exe	36
PID 340 wrote to memory of 1548	340	csrsll.exe	36
PID 340 wrote to memory of 1548	340	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe
"C:\Users\Admin\AppData\Local\Temp\c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2248
- C:\Users\Admin\AppData\Local\Temp\c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe
  "C:\Users\Admin\AppData\Local\Temp\c8a9bacaa8cc3a0b15cbedbd6b5887cacc858a037675c271675cda2e5a4de0b8.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2576
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\JOLLW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2928
  - - 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:2840
- - 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:340
  - - 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:2292
  - - 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:1548

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\JOLLW.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
34b3dc415fee1ace395ca9d9e738109e

SHA1
2c128285336fdcdf1cca968fbf7cf9c47193939b

SHA256
84431d8df0ccdd0fbd90980063ca96c63932d800f33807f885f5fabdecc3d4c6

SHA512
830fe34571dbd27a2d85e8a824bc4060a9f3217d58c603eaf6d082309dc8b60667d43b9f113e6216edef70faf22b731210472a5d97f0485b7783a7f05f594bde

Download Submit
memory/340-246-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/340-174-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/340-206-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/340-163-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/340-153-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1548-256-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1548-242-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2248-79-0x0000000000480000-0x0000000000482000-memory.dmp

Filesize
8KB

Download
memory/2248-29-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/2248-103-0x0000000002450000-0x00000000024A3000-memory.dmp

Filesize
332KB

Download
memory/2248-106-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2248-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2248-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2248-15-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2248-19-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2248-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2248-41-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/2248-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2248-71-0x0000000000460000-0x0000000000461000-memory.dmp

Filesize
4KB

Download
memory/2248-61-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2248-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2292-253-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2576-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2576-145-0x0000000003440000-0x0000000003493000-memory.dmp

Filesize
332KB

Download
memory/2576-150-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2576-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2576-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2576-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2576-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2576-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2576-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2576-249-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2576-146-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/2576-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads