modiloader | bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e

General

Target

bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe
Size

326KB
MD5

1b7f3191fcf1188240852a5af5df52df
SHA1

402b3285afd77ec9499f349ec7365d7a1be9ef94
SHA256

bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e
SHA512

55ae4552585085f32a7a2439571129864f168254209736780a156930ccdfa2c037daa20130066d35ab0f95d13d5809c2c84e107cb850a6dca48bad43218c60aa
SSDEEP

3072:Ie2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XV:IsxD5cwohO+O1sVG0/pZ6iPC8

Score

10^/10

modiloader persistence trojan upx

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader

Detects Windows executables referencing non-Windows User-Agents 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4724-50-0x0000000000400000-0x0000000000414000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/4724-53-0x0000000000400000-0x0000000000414000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/4724-49-0x0000000000400000-0x0000000000414000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/4724-58-0x0000000000400000-0x0000000000414000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

ModiLoader Second Stage 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4724-50-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4724-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4724-49-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4724-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

UPX dump on OEP (original entry point) 18 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2348-0-0x0000000000400000-0x0000000000454000-memory.dmp	UPX
behavioral2/memory/1396-4-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral2/memory/1396-9-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral2/memory/2348-10-0x0000000000400000-0x0000000000454000-memory.dmp	UPX
behavioral2/memory/1396-11-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral2/memory/1396-12-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe	UPX
behavioral2/memory/1664-36-0x0000000000400000-0x0000000000454000-memory.dmp	UPX
behavioral2/memory/1664-42-0x0000000000400000-0x0000000000454000-memory.dmp	UPX
behavioral2/memory/4724-48-0x0000000000400000-0x0000000000414000-memory.dmp	UPX
behavioral2/memory/4724-50-0x0000000000400000-0x0000000000414000-memory.dmp	UPX
behavioral2/memory/4724-53-0x0000000000400000-0x0000000000414000-memory.dmp	UPX
behavioral2/memory/4724-49-0x0000000000400000-0x0000000000414000-memory.dmp	UPX
behavioral2/memory/4724-44-0x0000000000400000-0x0000000000414000-memory.dmp	UPX
behavioral2/memory/1664-54-0x0000000000400000-0x0000000000454000-memory.dmp	UPX
behavioral2/memory/1396-55-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral2/memory/944-57-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral2/memory/4724-58-0x0000000000400000-0x0000000000414000-memory.dmp	UPX

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:

bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe

Executes dropped EXE 3 IoCs

Processes:

csrsll.execsrsll.execsrsll.exe

pid process

1664 csrsll.exe
944 csrsll.exe
4724 csrsll.exe

pid	process
1664	csrsll.exe
944	csrsll.exe
4724	csrsll.exe

UPX packed file 18 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2348-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1396-4-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1396-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2348-10-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1396-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1396-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe	upx
behavioral2/memory/1664-36-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1664-42-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4724-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4724-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4724-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4724-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4724-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1664-54-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1396-55-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/944-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4724-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.execsrsll.exe

description	pid	process	target process
PID 2348 set thread context of 1396	2348	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe
PID 1664 set thread context of 944	1664	csrsll.exe	csrsll.exe
PID 1664 set thread context of 4724	1664	csrsll.exe	csrsll.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

csrsll.exe

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

Processes:

bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exebd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.execsrsll.execsrsll.exe

pid	process
2348	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe
1396	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe
1664	csrsll.exe
944	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exebd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.execmd.execsrsll.exe

description	pid	process	target process
PID 2348 wrote to memory of 1396	2348	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe
PID 2348 wrote to memory of 1396	2348	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe
PID 2348 wrote to memory of 1396	2348	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe
PID 2348 wrote to memory of 1396	2348	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe
PID 2348 wrote to memory of 1396	2348	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe
PID 2348 wrote to memory of 1396	2348	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe
PID 2348 wrote to memory of 1396	2348	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe
PID 2348 wrote to memory of 1396	2348	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe
PID 1396 wrote to memory of 4360	1396	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe	cmd.exe
PID 1396 wrote to memory of 4360	1396	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe	cmd.exe
PID 1396 wrote to memory of 4360	1396	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe	cmd.exe
PID 4360 wrote to memory of 3764	4360	cmd.exe	reg.exe
PID 4360 wrote to memory of 3764	4360	cmd.exe	reg.exe
PID 4360 wrote to memory of 3764	4360	cmd.exe	reg.exe
PID 1396 wrote to memory of 1664	1396	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe	csrsll.exe
PID 1396 wrote to memory of 1664	1396	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe	csrsll.exe
PID 1396 wrote to memory of 1664	1396	bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe	csrsll.exe
PID 1664 wrote to memory of 944	1664	csrsll.exe	csrsll.exe
PID 1664 wrote to memory of 944	1664	csrsll.exe	csrsll.exe
PID 1664 wrote to memory of 944	1664	csrsll.exe	csrsll.exe
PID 1664 wrote to memory of 944	1664	csrsll.exe	csrsll.exe
PID 1664 wrote to memory of 944	1664	csrsll.exe	csrsll.exe
PID 1664 wrote to memory of 944	1664	csrsll.exe	csrsll.exe
PID 1664 wrote to memory of 944	1664	csrsll.exe	csrsll.exe
PID 1664 wrote to memory of 944	1664	csrsll.exe	csrsll.exe
PID 1664 wrote to memory of 4724	1664	csrsll.exe	csrsll.exe
PID 1664 wrote to memory of 4724	1664	csrsll.exe	csrsll.exe
PID 1664 wrote to memory of 4724	1664	csrsll.exe	csrsll.exe
PID 1664 wrote to memory of 4724	1664	csrsll.exe	csrsll.exe
PID 1664 wrote to memory of 4724	1664	csrsll.exe	csrsll.exe
PID 1664 wrote to memory of 4724	1664	csrsll.exe	csrsll.exe
PID 1664 wrote to memory of 4724	1664	csrsll.exe	csrsll.exe
PID 1664 wrote to memory of 4724	1664	csrsll.exe	csrsll.exe

C:\Users\Admin\AppData\Local\Temp\bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe
"C:\Users\Admin\AppData\Local\Temp\bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2348

C:\Users\Admin\AppData\Local\Temp\bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe
"C:\Users\Admin\AppData\Local\Temp\bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe"
2⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1396

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\XFTSE.bat" "
3⤵
- Suspicious use of WriteProcessMemory
PID:4360

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
PID:3764

C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1664

C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
4⤵
- Executes dropped EXE
- 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
PID:4724

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\XFTSE.txt
Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
Filesize
326KB

MD5
ae3e1dd797147f1cd9397bfd15572a61

SHA1
21de3060d133877b47056760df9b5750f03affd4

SHA256
abe859127886540056b6c568a03b3fbe4754a07860f9740c0d5ff11cee25ff3d

SHA512
2a9b40c8ffc3a888eecc2e3d1677c67f0b07530cc5247cb7b3c5645ae1edd906497f5bd6fdd552be5ff59f8175bc329b8d993a78f4846f42a0eb02ba58333d8e

Download Submit
memory/944-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1396-4-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1396-55-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1396-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1396-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1396-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1664-54-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1664-42-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1664-36-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2348-10-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2348-6-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download
memory/2348-7-0x00000000021F0000-0x00000000021F2000-memory.dmp

Filesize
8KB

Download
memory/2348-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2348-8-0x0000000002200000-0x0000000002202000-memory.dmp

Filesize
8KB

Download
memory/2348-3-0x00000000021C0000-0x00000000021C2000-memory.dmp

Filesize
8KB

Download
memory/4724-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4724-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4724-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4724-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4724-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4724-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads