modiloader | b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498

Analysis

max time kernel
119s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27/09/2024, 22:21

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General

Target

b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe
Size

326KB
MD5

13c43ea9907a0ba765f9a953f2c7ff70
SHA1

7090c38c2437d2c2cdd406694415c9f67f724b27
SHA256

b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498
SHA512

357e37575a44918c7b2e176b0c503a7bf1bf195f737d6dd67992e9fee60b39dec8b11660d5071cfd5d59b23db9893b922a7a25f74013b02ab3aaf5638fded241
SSDEEP

3072:h0e2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XV:h0sxD5cwohO+O1sVG0/pZ6iPC8

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/1068-254-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2936	csrsll.exe
944	csrsll.exe
1068	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2604	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe
2604	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe
2604	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe
2604	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe
2604	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.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-1-5-21-3533259084-2542256011-65585152-1000\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 2528 set thread context of 2604	2528	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	30
PID 2936 set thread context of 944	2936	csrsll.exe	36
PID 2936 set thread context of 1068	2936	csrsll.exe	37

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2528-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2528-87-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2528-89-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2604-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2604-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2604-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2604-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2528-100-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2528-99-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2604-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2604-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000c000000012029-131.dat	upx
behavioral1/memory/2604-133-0x00000000028A0000-0x00000000028F4000-memory.dmp	upx
behavioral1/memory/2604-150-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2936-210-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2936-244-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/1068-243-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2604-252-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/944-253-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1068-254-0x0000000000400000-0x0000000000414000-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	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	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe
Token: SeDebugPrivilege	944	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2528	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe
2604	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe
2936	csrsll.exe
944	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 2604	2528	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	30
PID 2528 wrote to memory of 2604	2528	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	30
PID 2528 wrote to memory of 2604	2528	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	30
PID 2528 wrote to memory of 2604	2528	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	30
PID 2528 wrote to memory of 2604	2528	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	30
PID 2528 wrote to memory of 2604	2528	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	30
PID 2528 wrote to memory of 2604	2528	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	30
PID 2528 wrote to memory of 2604	2528	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	30
PID 2604 wrote to memory of 2788	2604	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	31
PID 2604 wrote to memory of 2788	2604	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	31
PID 2604 wrote to memory of 2788	2604	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	31
PID 2604 wrote to memory of 2788	2604	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	31
PID 2788 wrote to memory of 1584	2788	cmd.exe	33
PID 2788 wrote to memory of 1584	2788	cmd.exe	33
PID 2788 wrote to memory of 1584	2788	cmd.exe	33
PID 2788 wrote to memory of 1584	2788	cmd.exe	33
PID 2604 wrote to memory of 2936	2604	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	34
PID 2604 wrote to memory of 2936	2604	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	34
PID 2604 wrote to memory of 2936	2604	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	34
PID 2604 wrote to memory of 2936	2604	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	34
PID 2936 wrote to memory of 944	2936	csrsll.exe	36
PID 2936 wrote to memory of 944	2936	csrsll.exe	36
PID 2936 wrote to memory of 944	2936	csrsll.exe	36
PID 2936 wrote to memory of 944	2936	csrsll.exe	36
PID 2936 wrote to memory of 944	2936	csrsll.exe	36
PID 2936 wrote to memory of 944	2936	csrsll.exe	36
PID 2936 wrote to memory of 944	2936	csrsll.exe	36
PID 2936 wrote to memory of 944	2936	csrsll.exe	36
PID 2936 wrote to memory of 1068	2936	csrsll.exe	37
PID 2936 wrote to memory of 1068	2936	csrsll.exe	37
PID 2936 wrote to memory of 1068	2936	csrsll.exe	37
PID 2936 wrote to memory of 1068	2936	csrsll.exe	37
PID 2936 wrote to memory of 1068	2936	csrsll.exe	37
PID 2936 wrote to memory of 1068	2936	csrsll.exe	37
PID 2936 wrote to memory of 1068	2936	csrsll.exe	37
PID 2936 wrote to memory of 1068	2936	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe
"C:\Users\Admin\AppData\Local\Temp\b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Users\Admin\AppData\Local\Temp\b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe
  "C:\Users\Admin\AppData\Local\Temp\b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2604
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\SWRNO.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2788
  - - 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:1584
- - 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:2936
  - - 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:944
  - - 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:1068

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\SWRNO.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
326KB

MD5
68bd97db296b8af6c175a91971ae89bc

SHA1
effac6c09c4d4700f5e5a0b9c5a33d4413036344

SHA256
3e51ce621de2e8633bc17deac8b6d426f07e7cb24594dc1d354ccca85855541e

SHA512
728cb024a76447becc54b18d20d46bab8de587278e34d5f598ef131bf304b6c112a5b91577626f82f3146541cc260d5c9cfe72e1c1bae71d2c32b0b31e83b86a

Download Submit
memory/944-253-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1068-254-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1068-243-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2528-99-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2528-70-0x0000000001C00000-0x0000000001C01000-memory.dmp

Filesize
4KB

Download
memory/2528-78-0x0000000001C20000-0x0000000001C22000-memory.dmp

Filesize
8KB

Download
memory/2528-60-0x0000000001BE0000-0x0000000001BE1000-memory.dmp

Filesize
4KB

Download
memory/2528-40-0x0000000000600000-0x0000000000601000-memory.dmp

Filesize
4KB

Download
memory/2528-28-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2528-89-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2528-3-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2528-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2528-87-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2528-15-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2528-5-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2528-100-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2528-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2604-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-133-0x00000000028A0000-0x00000000028F4000-memory.dmp

Filesize
336KB

Download
memory/2604-146-0x00000000028B0000-0x0000000002904000-memory.dmp

Filesize
336KB

Download
memory/2604-150-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2604-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-252-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-242-0x00000000028B0000-0x0000000002904000-memory.dmp

Filesize
336KB

Download
memory/2936-210-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2936-244-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2936-153-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2936-163-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2936-182-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/2936-174-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads