modiloader | a5a35e5d8a5e778629d06989a3d2b09166a371b4181c8699223ec243e4750cb6

General

Target

a5a35e5d8a5e778629d06989a3d2b09166a371b4181c8699223ec243e4750cb6.exe
Size

179KB
MD5

6d44cc17089f874f023c405521c6abe5
SHA1

7b578b40358098f8daafa529c52d74c563682877
SHA256

a5a35e5d8a5e778629d06989a3d2b09166a371b4181c8699223ec243e4750cb6
SHA512

f86339e807030e1756e9e229d5e404331c05c48a6054dead794ff58b5ae1fbf9a976250e0280c43b3b31d820b67404dcc16abb24ec4997a100b53fc578cd5f63
SSDEEP

3072:roy8j7VnNdrPHaSekwi+mW+2ujQYoutA1WMyTTedLbE1WMyTTedLbm:r8jZ7rvaU3+mWryQYoSoyTTedLAyTTeI

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 4 IoCs

resource	yara_rule
behavioral2/memory/2224-133-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/2224-137-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4224-140-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4224-144-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

pid	Process
4224	mstwain32.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2224-132-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/2224-133-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/files/0x000b00000001e683-135.dat	upx
behavioral2/files/0x000b00000001e683-136.dat	upx
behavioral2/memory/2224-137-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4224-140-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4224-144-0x0000000000400000-0x0000000000450000-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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	a5a35e5d8a5e778629d06989a3d2b09166a371b4181c8699223ec243e4750cb6.exe

Loads dropped DLL 4 IoCs

pid	Process
4224	mstwain32.exe
4224	mstwain32.exe
4224	mstwain32.exe
4224	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-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	mstwain32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\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	a5a35e5d8a5e778629d06989a3d2b09166a371b4181c8699223ec243e4750cb6.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	a5a35e5d8a5e778629d06989a3d2b09166a371b4181c8699223ec243e4750cb6.exe
File opened for modification	C:\Windows\mstwain32.exe	a5a35e5d8a5e778629d06989a3d2b09166a371b4181c8699223ec243e4750cb6.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	2224	a5a35e5d8a5e778629d06989a3d2b09166a371b4181c8699223ec243e4750cb6.exe
Token: SeBackupPrivilege	4940	vssvc.exe
Token: SeRestorePrivilege	4940	vssvc.exe
Token: SeAuditPrivilege	4940	vssvc.exe
Token: SeDebugPrivilege	4224	mstwain32.exe
Token: SeDebugPrivilege	4224	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4224	mstwain32.exe
4224	mstwain32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 4224	2224	a5a35e5d8a5e778629d06989a3d2b09166a371b4181c8699223ec243e4750cb6.exe	82
PID 2224 wrote to memory of 4224	2224	a5a35e5d8a5e778629d06989a3d2b09166a371b4181c8699223ec243e4750cb6.exe	82
PID 2224 wrote to memory of 4224	2224	a5a35e5d8a5e778629d06989a3d2b09166a371b4181c8699223ec243e4750cb6.exe	82

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\a5a35e5d8a5e778629d06989a3d2b09166a371b4181c8699223ec243e4750cb6.exe
"C:\Users\Admin\AppData\Local\Temp\a5a35e5d8a5e778629d06989a3d2b09166a371b4181c8699223ec243e4750cb6.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:2224
- C:\Windows\mstwain32.exe
  "C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\a5a35e5d8a5e778629d06989a3d2b09166a371b4181c8699223ec243e4750cb6.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:4224

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4940

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
4a9b7415a4f0a95bf0a9a3442b8b64d2

SHA1
f22ef31273da5fa63bdc2a92cbfb9f949974abcf

SHA256
545bb47d7727356176e2ff01e0e366542e6eecd6a30e47676da942e0ff4af896

SHA512
d4897f1f0d4d727df3ba172925050b21216d7610321973c9c6a62b2a81c9e961dc7a05fb95debb6a75d6f919e8a3be7b0515559c0db90800b5e2ab3b72c7f5cf

Download Submit
C:\Windows\cmsetac.dll

Filesize
33KB

MD5
4a9b7415a4f0a95bf0a9a3442b8b64d2

SHA1
f22ef31273da5fa63bdc2a92cbfb9f949974abcf

SHA256
545bb47d7727356176e2ff01e0e366542e6eecd6a30e47676da942e0ff4af896

SHA512
d4897f1f0d4d727df3ba172925050b21216d7610321973c9c6a62b2a81c9e961dc7a05fb95debb6a75d6f919e8a3be7b0515559c0db90800b5e2ab3b72c7f5cf

Download Submit
C:\Windows\mstwain32.exe

Filesize
179KB

MD5
6d44cc17089f874f023c405521c6abe5

SHA1
7b578b40358098f8daafa529c52d74c563682877

SHA256
a5a35e5d8a5e778629d06989a3d2b09166a371b4181c8699223ec243e4750cb6

SHA512
f86339e807030e1756e9e229d5e404331c05c48a6054dead794ff58b5ae1fbf9a976250e0280c43b3b31d820b67404dcc16abb24ec4997a100b53fc578cd5f63

Download Submit
C:\Windows\mstwain32.exe

Filesize
179KB

MD5
6d44cc17089f874f023c405521c6abe5

SHA1
7b578b40358098f8daafa529c52d74c563682877

SHA256
a5a35e5d8a5e778629d06989a3d2b09166a371b4181c8699223ec243e4750cb6

SHA512
f86339e807030e1756e9e229d5e404331c05c48a6054dead794ff58b5ae1fbf9a976250e0280c43b3b31d820b67404dcc16abb24ec4997a100b53fc578cd5f63

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/2224-132-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2224-137-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2224-133-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4224-140-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4224-143-0x00000000008D0000-0x00000000008DE000-memory.dmp

Filesize
56KB

Download
memory/4224-144-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads