modiloader | b7791d1985f604a1e430db1a314d8e668a116368fbdbd1c0eec7c819f794572e

General

Target

b7791d1985f604a1e430db1a314d8e668a116368fbdbd1c0eec7c819f794572e.exe
Size

369KB
MD5

a9f53f717119d87ef37cd69455bdf7c8
SHA1

558d1d89590e28d305ad31c3dde0e3b1dd4a9d92
SHA256

b7791d1985f604a1e430db1a314d8e668a116368fbdbd1c0eec7c819f794572e
SHA512

3168b45551e29474a0c5d267de367c5d343336aa8372e77974f73840fd4f5289a2140134710f7e723cd38033e79016f5a34109269874f6169a6479892882a6d0
SSDEEP

6144:0YKgiBqURlqw4FVSa1IOi8ms255DlQMX8Pn6YWiRI716L17Ab:49BqW49jKO8pKMXcnl9RI71u1Ub

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

ModiLoader Second Stage 4 IoCs

resource	yara_rule
behavioral1/memory/1756-70-0x000000000041F030-mapping.dmp	modiloader_stage2
behavioral1/memory/1756-75-0x0000000000400000-0x0000000000421000-memory.dmp	modiloader_stage2
behavioral1/memory/1756-77-0x0000000000400000-0x0000000000421000-memory.dmp	modiloader_stage2
behavioral1/memory/1756-78-0x0000000000400000-0x0000000000421000-memory.dmp	modiloader_stage2

Executes dropped EXE 2 IoCs

pid	Process
1000	winini.exe
1756	cvtres.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1756-64-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/1756-67-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/1756-72-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/1756-74-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/1756-75-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/1756-68-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/1756-77-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/1756-78-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Loads dropped DLL 3 IoCs

pid	Process
1720	b7791d1985f604a1e430db1a314d8e668a116368fbdbd1c0eec7c819f794572e.exe
1720	b7791d1985f604a1e430db1a314d8e668a116368fbdbd1c0eec7c819f794572e.exe
1000	winini.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Live = "C:\\Users\\Admin\\AppData\\winini.exe"	winini.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1000 set thread context of 1756	1000	winini.exe	28

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1000	winini.exe
1000	winini.exe
1756	cvtres.exe
1756	cvtres.exe
1756	cvtres.exe
1756	cvtres.exe
1756	cvtres.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1000	winini.exe
Token: SeDebugPrivilege	1000	winini.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 1000	1720	b7791d1985f604a1e430db1a314d8e668a116368fbdbd1c0eec7c819f794572e.exe	27
PID 1720 wrote to memory of 1000	1720	b7791d1985f604a1e430db1a314d8e668a116368fbdbd1c0eec7c819f794572e.exe	27
PID 1720 wrote to memory of 1000	1720	b7791d1985f604a1e430db1a314d8e668a116368fbdbd1c0eec7c819f794572e.exe	27
PID 1720 wrote to memory of 1000	1720	b7791d1985f604a1e430db1a314d8e668a116368fbdbd1c0eec7c819f794572e.exe	27
PID 1000 wrote to memory of 1756	1000	winini.exe	28
PID 1000 wrote to memory of 1756	1000	winini.exe	28
PID 1000 wrote to memory of 1756	1000	winini.exe	28
PID 1000 wrote to memory of 1756	1000	winini.exe	28
PID 1000 wrote to memory of 1756	1000	winini.exe	28
PID 1000 wrote to memory of 1756	1000	winini.exe	28
PID 1000 wrote to memory of 1756	1000	winini.exe	28
PID 1000 wrote to memory of 1756	1000	winini.exe	28

C:\Users\Admin\AppData\Local\Temp\b7791d1985f604a1e430db1a314d8e668a116368fbdbd1c0eec7c819f794572e.exe
"C:\Users\Admin\AppData\Local\Temp\b7791d1985f604a1e430db1a314d8e668a116368fbdbd1c0eec7c819f794572e.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Users\Admin\AppData\winini.exe
  "C:\Users\Admin\AppData\winini.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1000
- - C:\Users\Admin\AppData\Local\Temp\cvtres.exe
    C:\Users\Admin\AppData\Local\Temp\\cvtres.exe
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    PID:1756

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\cvtres.exe

Filesize
31KB

MD5
ed797d8dc2c92401985d162e42ffa450

SHA1
0f02fc517c7facc4baefde4fe9467fb6488ebabe

SHA256
b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

SHA512
e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

Download Submit
C:\Users\Admin\AppData\winini.exe

Filesize
81KB

MD5
aef8b712ff626582b9d987ffbf9d8418

SHA1
105c24ca1d448040ddfdf69ac48438f3c0ce8ca1

SHA256
b4278a8b73e26acf0c97fcfcc4f04cb1ec63fceb25aa22028908e7f0bd858997

SHA512
d5a99fb67f38a347b0c58b35c5b37e8cda3d2e2b23acef7d743d69bee1b3e357ded05351f20f03786098f7731c29e7b5442f60dfd8f0940b283f92d195143666

Download Submit
C:\Users\Admin\AppData\winini.exe

Filesize
81KB

MD5
aef8b712ff626582b9d987ffbf9d8418

SHA1
105c24ca1d448040ddfdf69ac48438f3c0ce8ca1

SHA256
b4278a8b73e26acf0c97fcfcc4f04cb1ec63fceb25aa22028908e7f0bd858997

SHA512
d5a99fb67f38a347b0c58b35c5b37e8cda3d2e2b23acef7d743d69bee1b3e357ded05351f20f03786098f7731c29e7b5442f60dfd8f0940b283f92d195143666

Download Submit
\Users\Admin\AppData\Local\Temp\cvtres.exe

Filesize
31KB

MD5
ed797d8dc2c92401985d162e42ffa450

SHA1
0f02fc517c7facc4baefde4fe9467fb6488ebabe

SHA256
b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

SHA512
e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

Download Submit
\Users\Admin\AppData\winini.exe

Filesize
81KB

MD5
aef8b712ff626582b9d987ffbf9d8418

SHA1
105c24ca1d448040ddfdf69ac48438f3c0ce8ca1

SHA256
b4278a8b73e26acf0c97fcfcc4f04cb1ec63fceb25aa22028908e7f0bd858997

SHA512
d5a99fb67f38a347b0c58b35c5b37e8cda3d2e2b23acef7d743d69bee1b3e357ded05351f20f03786098f7731c29e7b5442f60dfd8f0940b283f92d195143666

Download Submit
\Users\Admin\AppData\winini.exe

Filesize
81KB

MD5
aef8b712ff626582b9d987ffbf9d8418

SHA1
105c24ca1d448040ddfdf69ac48438f3c0ce8ca1

SHA256
b4278a8b73e26acf0c97fcfcc4f04cb1ec63fceb25aa22028908e7f0bd858997

SHA512
d5a99fb67f38a347b0c58b35c5b37e8cda3d2e2b23acef7d743d69bee1b3e357ded05351f20f03786098f7731c29e7b5442f60dfd8f0940b283f92d195143666

Download Submit
memory/1000-65-0x0000000074990000-0x0000000074F3B000-memory.dmp

Filesize
5.7MB

Download
memory/1000-76-0x0000000074990000-0x0000000074F3B000-memory.dmp

Filesize
5.7MB

Download
memory/1720-69-0x0000000074990000-0x0000000074F3B000-memory.dmp

Filesize
5.7MB

Download
memory/1720-54-0x00000000765B1000-0x00000000765B3000-memory.dmp

Filesize
8KB

Download
memory/1720-63-0x0000000074990000-0x0000000074F3B000-memory.dmp

Filesize
5.7MB

Download
memory/1756-67-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1756-72-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1756-74-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1756-64-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1756-62-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1756-75-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1756-68-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1756-77-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1756-78-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

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