modiloader | b16af33e07dd7c6a46c382cdee989a3c064fd54e727163e5c6fb7a006df42e98

General

Target

b16af33e07dd7c6a46c382cdee989a3c064fd54e727163e5c6fb7a006df42e98.exe
Size

110KB
MD5

6a50627bd18ae92a9a8833056cfd336b
SHA1

e91192d302efa2007762f6ca130d53e8f8443984
SHA256

b16af33e07dd7c6a46c382cdee989a3c064fd54e727163e5c6fb7a006df42e98
SHA512

d8b208561d5ee75f73fa196dfc7b5468e41a880101509058552cec6444693f8e8758bebe34fa6348c0dc54de483f5e55041a8020df15ed80386c4848d3094479
SSDEEP

1536:6VuNAXTj4Fj/91/NnLZqeWEPVpa8DzePjkgcwYS7S5+Vfk09GJsCwrcOwKnouy8y:ooy8j7VnNdrPHaSekwi+mWaeouty

Score

10^/10

modiloader evasion persistence trojan upx

Malware Config

Signatures

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

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

ModiLoader Second Stage 5 IoCs

resource	yara_rule
behavioral2/memory/3704-132-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/3704-133-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4064-137-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/3704-140-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4064-144-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

pid	Process
4064	mstwain32.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3704-132-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/3704-133-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/files/0x000800000002316b-136.dat	upx
behavioral2/files/0x000800000002316b-135.dat	upx
behavioral2/memory/4064-137-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/3704-140-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4064-144-0x0000000000400000-0x0000000000450000-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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	b16af33e07dd7c6a46c382cdee989a3c064fd54e727163e5c6fb7a006df42e98.exe

Loads dropped DLL 4 IoCs

pid	Process
4064	mstwain32.exe
4064	mstwain32.exe
4064	mstwain32.exe
4064	mstwain32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	mstwain32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe"	mstwain32.exe

Checks whether UAC is enabled 1 TTPs 3 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	b16af33e07dd7c6a46c382cdee989a3c064fd54e727163e5c6fb7a006df42e98.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	mstwain32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\mstwain32.exe	b16af33e07dd7c6a46c382cdee989a3c064fd54e727163e5c6fb7a006df42e98.exe
File opened for modification	C:\Windows\mstwain32.exe	b16af33e07dd7c6a46c382cdee989a3c064fd54e727163e5c6fb7a006df42e98.exe
File created	C:\Windows\ntdtcstp.dll	mstwain32.exe
File created	C:\Windows\cmsetac.dll	mstwain32.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3704	b16af33e07dd7c6a46c382cdee989a3c064fd54e727163e5c6fb7a006df42e98.exe
Token: SeBackupPrivilege	424	vssvc.exe
Token: SeRestorePrivilege	424	vssvc.exe
Token: SeAuditPrivilege	424	vssvc.exe
Token: SeDebugPrivilege	4064	mstwain32.exe
Token: SeDebugPrivilege	4064	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4064	mstwain32.exe
4064	mstwain32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3704 wrote to memory of 4064	3704	b16af33e07dd7c6a46c382cdee989a3c064fd54e727163e5c6fb7a006df42e98.exe	84
PID 3704 wrote to memory of 4064	3704	b16af33e07dd7c6a46c382cdee989a3c064fd54e727163e5c6fb7a006df42e98.exe	84
PID 3704 wrote to memory of 4064	3704	b16af33e07dd7c6a46c382cdee989a3c064fd54e727163e5c6fb7a006df42e98.exe	84

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

C:\Users\Admin\AppData\Local\Temp\b16af33e07dd7c6a46c382cdee989a3c064fd54e727163e5c6fb7a006df42e98.exe
"C:\Users\Admin\AppData\Local\Temp\b16af33e07dd7c6a46c382cdee989a3c064fd54e727163e5c6fb7a006df42e98.exe"
1⤵
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3704
- C:\Windows\mstwain32.exe
  "C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\b16af33e07dd7c6a46c382cdee989a3c064fd54e727163e5c6fb7a006df42e98.exe"
  2⤵
  - UAC bypass
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - System policy modification
  PID:4064

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:424

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Bypass User Account Control

1

T1088

Defense Evasion

Bypass User Account Control

1

T1088

Disabling Security Tools

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\cmsetac.dll

Filesize
33KB

MD5
36f3943ccce842f7cd28dd7c963e8ee5

SHA1
455186d6fc8a9e19d949fe3f9aaed023537249d8

SHA256
122bd04d0aeda5aa09b828bc45be4c7da7ab9b45d489b5ab630a7c74cf19b537

SHA512
6e00c1c04d271c7bdbcc032d1c6a2e35106e9ffd6cd7c725501bc804ae35c7a02c93549c8518179511cb7dfcbd74530aa7a7b4e973387809b5405875f1a60388

Download Submit
C:\Windows\cmsetac.dll

Filesize
33KB

MD5
36f3943ccce842f7cd28dd7c963e8ee5

SHA1
455186d6fc8a9e19d949fe3f9aaed023537249d8

SHA256
122bd04d0aeda5aa09b828bc45be4c7da7ab9b45d489b5ab630a7c74cf19b537

SHA512
6e00c1c04d271c7bdbcc032d1c6a2e35106e9ffd6cd7c725501bc804ae35c7a02c93549c8518179511cb7dfcbd74530aa7a7b4e973387809b5405875f1a60388

Download Submit
C:\Windows\mstwain32.exe

Filesize
110KB

MD5
6a50627bd18ae92a9a8833056cfd336b

SHA1
e91192d302efa2007762f6ca130d53e8f8443984

SHA256
b16af33e07dd7c6a46c382cdee989a3c064fd54e727163e5c6fb7a006df42e98

SHA512
d8b208561d5ee75f73fa196dfc7b5468e41a880101509058552cec6444693f8e8758bebe34fa6348c0dc54de483f5e55041a8020df15ed80386c4848d3094479

Download Submit
C:\Windows\mstwain32.exe

Filesize
110KB

MD5
6a50627bd18ae92a9a8833056cfd336b

SHA1
e91192d302efa2007762f6ca130d53e8f8443984

SHA256
b16af33e07dd7c6a46c382cdee989a3c064fd54e727163e5c6fb7a006df42e98

SHA512
d8b208561d5ee75f73fa196dfc7b5468e41a880101509058552cec6444693f8e8758bebe34fa6348c0dc54de483f5e55041a8020df15ed80386c4848d3094479

Download Submit
C:\Windows\ntdtcstp.dll

Filesize
7KB

MD5
67587e25a971a141628d7f07bd40ffa0

SHA1
76fcd014539a3bb247cc0b761225f68bd6055f6b

SHA256
e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

SHA512
6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

Download Submit
C:\Windows\ntdtcstp.dll

Filesize
7KB

MD5
67587e25a971a141628d7f07bd40ffa0

SHA1
76fcd014539a3bb247cc0b761225f68bd6055f6b

SHA256
e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

SHA512
6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

Download Submit
memory/3704-132-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3704-140-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3704-133-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4064-137-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4064-143-0x0000000002240000-0x000000000224E000-memory.dmp

Filesize
56KB

Download
memory/4064-144-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads