modiloader | 365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2f

Analysis

max time kernel
118s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06-11-2024 13:23

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General

Target

365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe
Size

90KB
MD5

b7562e38ced30f12424f12a09c9acd80
SHA1

aa4c5af685e7160c70c63b8d2b7b9e5e8c6ebaab
SHA256

365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2f
SHA512

60601bb9f0ccaad092515b12c6444dd74b8471d1a64092da99f36d78e4025ba898ed7f18eaaab8c5e00cc407c5fd3a83fa64a0fc3260a47d999bb514f6a65497
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 family
modiloader

ModiLoader Second Stage 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2988-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2988-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2988-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2988-64-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe

Executes dropped EXE 3 IoCs

Processes:

csrsll.execsrsll.execsrsll.exe

pid	Process
1520	csrsll.exe
2308	csrsll.exe
2988	csrsll.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.execsrsll.exe

description	pid	Process	procid_target
PID 3872 set thread context of 4048	3872	365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe	94
PID 1520 set thread context of 2308	1520	csrsll.exe	103
PID 1520 set thread context of 2988	1520	csrsll.exe	104

UPX packed file 20 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/3872-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3872-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4048-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4048-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3872-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4048-14-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000e000000023b45-30.dat	upx
behavioral2/memory/1520-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4048-41-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1520-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1520-43-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2988-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2988-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2988-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2988-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2988-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1520-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4048-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2308-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2988-64-0x0000000000400000-0x0000000000414000-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

Processes:

365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.execmd.exereg.execsrsll.execsrsll.execsrsll.exe365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.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	365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

csrsll.exe

description	pid	Process
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe
Token: SeDebugPrivilege	2308	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.execsrsll.execsrsll.exe

pid	Process
3872	365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe
4048	365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe
1520	csrsll.exe
2308	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.execmd.execsrsll.exe

description	pid	Process	procid_target
PID 3872 wrote to memory of 4048	3872	365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe	94
PID 3872 wrote to memory of 4048	3872	365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe	94
PID 3872 wrote to memory of 4048	3872	365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe	94
PID 3872 wrote to memory of 4048	3872	365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe	94
PID 3872 wrote to memory of 4048	3872	365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe	94
PID 3872 wrote to memory of 4048	3872	365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe	94
PID 3872 wrote to memory of 4048	3872	365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe	94
PID 3872 wrote to memory of 4048	3872	365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe	94
PID 4048 wrote to memory of 1808	4048	365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe	95
PID 4048 wrote to memory of 1808	4048	365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe	95
PID 4048 wrote to memory of 1808	4048	365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe	95
PID 1808 wrote to memory of 5000	1808	cmd.exe	101
PID 1808 wrote to memory of 5000	1808	cmd.exe	101
PID 1808 wrote to memory of 5000	1808	cmd.exe	101
PID 4048 wrote to memory of 1520	4048	365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe	102
PID 4048 wrote to memory of 1520	4048	365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe	102
PID 4048 wrote to memory of 1520	4048	365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe	102
PID 1520 wrote to memory of 2308	1520	csrsll.exe	103
PID 1520 wrote to memory of 2308	1520	csrsll.exe	103
PID 1520 wrote to memory of 2308	1520	csrsll.exe	103
PID 1520 wrote to memory of 2308	1520	csrsll.exe	103
PID 1520 wrote to memory of 2308	1520	csrsll.exe	103
PID 1520 wrote to memory of 2308	1520	csrsll.exe	103
PID 1520 wrote to memory of 2308	1520	csrsll.exe	103
PID 1520 wrote to memory of 2308	1520	csrsll.exe	103
PID 1520 wrote to memory of 2988	1520	csrsll.exe	104
PID 1520 wrote to memory of 2988	1520	csrsll.exe	104
PID 1520 wrote to memory of 2988	1520	csrsll.exe	104
PID 1520 wrote to memory of 2988	1520	csrsll.exe	104
PID 1520 wrote to memory of 2988	1520	csrsll.exe	104
PID 1520 wrote to memory of 2988	1520	csrsll.exe	104
PID 1520 wrote to memory of 2988	1520	csrsll.exe	104
PID 1520 wrote to memory of 2988	1520	csrsll.exe	104

C:\Users\Admin\AppData\Local\Temp\365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe
"C:\Users\Admin\AppData\Local\Temp\365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3872
- C:\Users\Admin\AppData\Local\Temp\365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe
  "C:\Users\Admin\AppData\Local\Temp\365157dec3a6877593eb6a072e93964984ec81fa3098e9be589017cce6847a2fN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4048
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\QYQEF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1808
  - - 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:5000
- - 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:1520
  - - 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:2308
  - - 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:2988

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

Query Registry

T1012

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\QYQEF.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
5a6c7bdd53d05829b2cf6db612952305

SHA1
a5075be080574abb20177fea70966037a96b753e

SHA256
dd6a18e30c28a4eabbc01ebffb1d04b474bbe8b1ad650ce9d6d9328221674ff9

SHA512
a09e7b33e49dd56d5459d6b2bf23b04b2d5aef188c9298f897317387d548da19a3bc8a78449686c711fb22fb405b5133c4072f83693992dec1623d03425de6b0

Download Submit
memory/1520-43-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1520-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1520-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1520-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2308-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2988-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2988-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2988-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2988-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2988-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2988-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3872-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3872-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3872-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3872-6-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/3872-4-0x0000000002A30000-0x0000000002A32000-memory.dmp

Filesize
8KB

Download
memory/3872-3-0x0000000002A20000-0x0000000002A22000-memory.dmp

Filesize
8KB

Download
memory/4048-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4048-41-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4048-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4048-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4048-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4048-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download