modiloader | 43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee

General

Target

43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee.exe
Size

275KB
MD5

82808f7ff9cf6b09815efb737e80aaa7
SHA1

053d4c5f5a937c746b4768aa74062fbd825860df
SHA256

43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee
SHA512

c05c047ad0a593b3c946d156a13cb048fb7e10ff94fbc60ce0a2f3a9478342276597d30ad13e4802751bfd319fd8c47d2dc3029b257c2e2cc873b74f4afbc12b
SSDEEP

6144:KG377xS2Vp2CeiorXhwTBOx53UpcCJJvH:Zr7xS2Vp6FwTFbJJvH

Score

10^/10

modiloader evasion persistence trojan

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

Processes:

mstwain32.exe

description ioc process

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

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

ModiLoader Second Stage 18 IoCs

Processes:

resource	yara_rule
C:\Windows\mstwain32.exe	modiloader_stage2
C:\Windows\mstwain32.exe	modiloader_stage2
C:\Windows\mstwain32.exe	modiloader_stage2
behavioral2/memory/3272-142-0x0000000000400000-0x000000000044D000-memory.dmp	modiloader_stage2
behavioral2/memory/3008-158-0x0000000000400000-0x000000000044D000-memory.dmp	modiloader_stage2
behavioral2/memory/3008-161-0x0000000000400000-0x000000000044D000-memory.dmp	modiloader_stage2
behavioral2/memory/3008-164-0x0000000000400000-0x000000000044D000-memory.dmp	modiloader_stage2
behavioral2/memory/3008-167-0x0000000000400000-0x000000000044D000-memory.dmp	modiloader_stage2
behavioral2/memory/3008-170-0x0000000000400000-0x000000000044D000-memory.dmp	modiloader_stage2
behavioral2/memory/3008-173-0x0000000000400000-0x000000000044D000-memory.dmp	modiloader_stage2
behavioral2/memory/3008-176-0x0000000000400000-0x000000000044D000-memory.dmp	modiloader_stage2
behavioral2/memory/3008-179-0x0000000000400000-0x000000000044D000-memory.dmp	modiloader_stage2
behavioral2/memory/3008-182-0x0000000000400000-0x000000000044D000-memory.dmp	modiloader_stage2
behavioral2/memory/3008-185-0x0000000000400000-0x000000000044D000-memory.dmp	modiloader_stage2
behavioral2/memory/3008-188-0x0000000000400000-0x000000000044D000-memory.dmp	modiloader_stage2
behavioral2/memory/3008-191-0x0000000000400000-0x000000000044D000-memory.dmp	modiloader_stage2
behavioral2/memory/3008-194-0x0000000000400000-0x000000000044D000-memory.dmp	modiloader_stage2
behavioral2/memory/3008-197-0x0000000000400000-0x000000000044D000-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:

43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee.exe

Executes dropped EXE 1 IoCs

Processes:

mstwain32.exe

pid process

3008 mstwain32.exe
Loads dropped DLL 4 IoCs

Processes:

mstwain32.exe

pid process

3008 mstwain32.exe
3008 mstwain32.exe
3008 mstwain32.exe
3008 mstwain32.exe

pid	process
3008	mstwain32.exe

pid	process
3008	mstwain32.exe
3008	mstwain32.exe
3008	mstwain32.exe
3008	mstwain32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

mstwain32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	mstwain32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\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

Processes:

43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee.exemstwain32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee.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

Processes:

43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee.exemstwain32.exe

description	ioc	process
File opened for modification	C:\Windows\mstwain32.exe	43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee.exe
File created	C:\Windows\ntdtcstp.dll	mstwain32.exe
File created	C:\Windows\cmsetac.dll	mstwain32.exe
File created	C:\Windows\mstwain32.exe	43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee.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

Processes:

43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee.exevssvc.exemstwain32.exe

description	pid	process
Token: SeDebugPrivilege	3272	43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee.exe
Token: SeBackupPrivilege	4788	vssvc.exe
Token: SeRestorePrivilege	4788	vssvc.exe
Token: SeAuditPrivilege	4788	vssvc.exe
Token: SeDebugPrivilege	3008	mstwain32.exe
Token: SeDebugPrivilege	3008	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

mstwain32.exe

pid process

3008 mstwain32.exe
3008 mstwain32.exe

pid	process
3008	mstwain32.exe
3008	mstwain32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee.exe

description	pid	process	target process
PID 3272 wrote to memory of 3008	3272	43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee.exe	mstwain32.exe
PID 3272 wrote to memory of 3008	3272	43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee.exe	mstwain32.exe
PID 3272 wrote to memory of 3008	3272	43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee.exe	mstwain32.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

mstwain32.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" mstwain32.exe
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

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

C:\Users\Admin\AppData\Local\Temp\43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee.exe
"C:\Users\Admin\AppData\Local\Temp\43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee.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:3272

C:\Windows\mstwain32.exe
"C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee.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:3008

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4788

Network

MITRE ATT&CK Matrix ATT&CK 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

1

T1089

Modify Registry

3

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Windows\cmsetac.dll
Filesize
33KB

MD5
949e112d67d0dccb0ba0ff51cb22e546

SHA1
d3acac24c44e85f0aacb908259ec509bb7a47a22

SHA256
ff0b299b89c9e3efe993d92bf2da9209f04153310c3a347b54e28070b94e3d3e

SHA512
2805ee436a3735288fb58db13c381e8daac05a155f30ce79f0f06ddded0df681b70a0b9ba5ba9aa58295d2595eaab8c033a9b661342e9d0099a36690b23513b8

Download Submit
C:\Windows\cmsetac.dll
Filesize
33KB

MD5
949e112d67d0dccb0ba0ff51cb22e546

SHA1
d3acac24c44e85f0aacb908259ec509bb7a47a22

SHA256
ff0b299b89c9e3efe993d92bf2da9209f04153310c3a347b54e28070b94e3d3e

SHA512
2805ee436a3735288fb58db13c381e8daac05a155f30ce79f0f06ddded0df681b70a0b9ba5ba9aa58295d2595eaab8c033a9b661342e9d0099a36690b23513b8

Download Submit
C:\Windows\mstwain32.exe
Filesize
275KB

MD5
82808f7ff9cf6b09815efb737e80aaa7

SHA1
053d4c5f5a937c746b4768aa74062fbd825860df

SHA256
43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee

SHA512
c05c047ad0a593b3c946d156a13cb048fb7e10ff94fbc60ce0a2f3a9478342276597d30ad13e4802751bfd319fd8c47d2dc3029b257c2e2cc873b74f4afbc12b

Download Submit
C:\Windows\mstwain32.exe
Filesize
275KB

MD5
82808f7ff9cf6b09815efb737e80aaa7

SHA1
053d4c5f5a937c746b4768aa74062fbd825860df

SHA256
43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee

SHA512
c05c047ad0a593b3c946d156a13cb048fb7e10ff94fbc60ce0a2f3a9478342276597d30ad13e4802751bfd319fd8c47d2dc3029b257c2e2cc873b74f4afbc12b

Download Submit
C:\Windows\mstwain32.exe
Filesize
275KB

MD5
82808f7ff9cf6b09815efb737e80aaa7

SHA1
053d4c5f5a937c746b4768aa74062fbd825860df

SHA256
43bb5ce39aa18f8d17eb1243cbf327a16b2c0b05c94dc7e2044b773d6e8193ee

SHA512
c05c047ad0a593b3c946d156a13cb048fb7e10ff94fbc60ce0a2f3a9478342276597d30ad13e4802751bfd319fd8c47d2dc3029b257c2e2cc873b74f4afbc12b

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/3008-159-0x00000000005D0000-0x00000000005D8000-memory.dmp

Filesize
32KB

Download
memory/3008-179-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3008-157-0x0000000003080000-0x0000000003081000-memory.dmp

Filesize
4KB

Download
memory/3008-156-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/3008-158-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3008-197-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3008-160-0x00000000031D0000-0x00000000031DE000-memory.dmp

Filesize
56KB

Download
memory/3008-161-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3008-164-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3008-167-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3008-170-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3008-173-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3008-176-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3008-153-0x00000000031D0000-0x00000000031DE000-memory.dmp

Filesize
56KB

Download
memory/3008-182-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3008-185-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3008-188-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3008-191-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3008-194-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3272-142-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads