c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993

Analysis

max time kernel
115s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
20/09/2024, 05:06

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General

Target

c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
Size

6.7MB
MD5

32e845f7459a02d026db70ca010ccc40
SHA1

b3678082663c4cd21f50b354cd7556331abf7736
SHA256

c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993
SHA512

c2ecbf2cb686564752639c4b359ae9d909f83dcfc05c0fe258ceb4a0103efa5378b606bbb8d09e06dde7453da5c4d0d6a358510b819c20894eb74e6443df1477
SSDEEP

49152:Kwi0L0q+wi0L0qR4wZB8NIM+B8NIMI8Sfpwotkzaxc1OGz88wk:Vi0fi0H4wmIMrIMzKpXOMGQ8wk

Score

10^/10

aspackv2 discovery persistence ransomware

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe HelpMe.exe"	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe HelpMe.exe"	HelpMe.exe

Renames multiple (91) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

ASPack v2.12-2.42 3 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral1/files/0x00090000000122cf-7.dat	aspack_v212_v242
behavioral1/files/0x00060000000186c6-38.dat	aspack_v212_v242
behavioral1/files/0x0001000000000026-61.dat	aspack_v212_v242

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	HelpMe.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe

Executes dropped EXE 1 IoCs

pid	Process
2768	HelpMe.exe

Loads dropped DLL 2 IoCs

pid	Process
2668	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
2668	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe

Enumerates connected drives 3 TTPs 46 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\Y:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\B:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\J:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\K:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\U:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\R:	HelpMe.exe
File opened (read-only)	\??\E:	HelpMe.exe
File opened (read-only)	\??\S:	HelpMe.exe
File opened (read-only)	\??\W:	HelpMe.exe
File opened (read-only)	\??\A:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\P:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\V:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\J:	HelpMe.exe
File opened (read-only)	\??\K:	HelpMe.exe
File opened (read-only)	\??\M:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\R:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\B:	HelpMe.exe
File opened (read-only)	\??\I:	HelpMe.exe
File opened (read-only)	\??\T:	HelpMe.exe
File opened (read-only)	\??\U:	HelpMe.exe
File opened (read-only)	\??\Q:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\X:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\G:	HelpMe.exe
File opened (read-only)	\??\T:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\W:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\Z:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\H:	HelpMe.exe
File opened (read-only)	\??\L:	HelpMe.exe
File opened (read-only)	\??\E:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\I:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\N:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\Z:	HelpMe.exe
File opened (read-only)	\??\M:	HelpMe.exe
File opened (read-only)	\??\N:	HelpMe.exe
File opened (read-only)	\??\O:	HelpMe.exe
File opened (read-only)	\??\Q:	HelpMe.exe
File opened (read-only)	\??\X:	HelpMe.exe
File opened (read-only)	\??\Y:	HelpMe.exe
File opened (read-only)	\??\G:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\A:	HelpMe.exe
File opened (read-only)	\??\P:	HelpMe.exe
File opened (read-only)	\??\S:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\V:	HelpMe.exe
File opened (read-only)	\??\H:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\L:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened (read-only)	\??\O:	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe

Drops autorun.inf file 1 TTPs 3 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File opened for modification	F:\AUTORUN.INF	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened for modification	C:\AUTORUN.INF	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File opened for modification	F:\AUTORUN.INF	HelpMe.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\HelpMe.exe	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
File created	C:\Windows\SysWOW64\HelpMe.exe	HelpMe.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HelpMe.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2768	2668	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe	30
PID 2668 wrote to memory of 2768	2668	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe	30
PID 2668 wrote to memory of 2768	2668	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe	30
PID 2668 wrote to memory of 2768	2668	c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe	30

C:\Users\Admin\AppData\Local\Temp\c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe
"C:\Users\Admin\AppData\Local\Temp\c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993N.exe"
1⤵
- Modifies WinLogon for persistence
- Drops startup file
- Loads dropped DLL
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Windows\SysWOW64\HelpMe.exe
  C:\Windows\system32\HelpMe.exe
  2⤵
  - Modifies WinLogon for persistence
  - Drops startup file
  - Executes dropped EXE
  - Enumerates connected drives
  - Drops autorun.inf file
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:2768

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Replication Through Removable Media

T1091

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\$Recycle.Bin\S-1-5-21-2703099537-420551529-3771253338-1000\desktop.ini.exe

Filesize
6.7MB

MD5
7244e341d25db2b3ca0896593cf0ee21

SHA1
900d49f496eccdd622d5499ee4cdbfcfc879a784

SHA256
1003ba3c45a3c7e4e6b3f3ea3648b4d9619907e766d562cd6e4f6e381bb45014

SHA512
31e9b1572dc0bb1c60ae049660952bb1429d4b84603a8d885edb3e5a57dbdbd41ea3a9b1a3963cec1581a8ba6151512e1b4f56b3d37023c9eea858741a546a66

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

Filesize
1KB

MD5
f641c0cd613d82b80b71a58afb01ebe0

SHA1
dba6a8eeb04ce75c176b9bb597fcd75e63531760

SHA256
83712efaf65b471ad5256a82f3b7e1a7d32768c449899455e9f510c1103b1168

SHA512
6d1fe73615e03a755a51a88e23738bf2c58be52dc8e704165af87b329755275c6382e175016163b5d364d4a6aca4dd7bf65f15b3ab8a6f3c3ef5b3349b49be4c

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

Filesize
950B

MD5
86fbcaa9f518ae919f526d46505e96ba

SHA1
9a19a1a3a70fac9ca6615ed8fb5678191b39be61

SHA256
a17f2538639247a0ced2f45df308146fd2944c29a9028df04bcb3baeb9098e46

SHA512
b39218c952a75249a963eefaac6ffe6ba234d8a8b2b8b4b0feff5e4a5597cc2bb7e6807a07074c7ea74d4c938a67b8afc93cbaae1287222d5d52f2d50f3d70f3

Download Submit
C:\Windows\SysWOW64\HelpMe.exe

Filesize
6.7MB

MD5
ae569d8adb0270467182b351b868a054

SHA1
7373b5ef1b2e0269377bddc5cbebe0f2db54812e

SHA256
301a8ee1fa7b81c45e3162ed2c433c557f49bb096bc23fa51949b21ccd6a3feb

SHA512
59decabefc7852bc4f1dd60e2c5f6bc005f86be735b448f5347ed1809dd51134ca0cc97d1f9f39d8ac044da5b00520088d64a6f8387a71076513a9f24f9c4bc7

Download Submit
F:\AUTORUN.INF

Filesize
145B

MD5
ca13857b2fd3895a39f09d9dde3cca97

SHA1
8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

SHA256
cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

SHA512
55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

Download Submit
F:\AutoRun.exe

Filesize
6.7MB

MD5
32e845f7459a02d026db70ca010ccc40

SHA1
b3678082663c4cd21f50b354cd7556331abf7736

SHA256
c98fbadad6784f4542ddff3a63c73f9133569ab6663d6ac0fc0543fafe6e3993

SHA512
c2ecbf2cb686564752639c4b359ae9d909f83dcfc05c0fe258ceb4a0103efa5378b606bbb8d09e06dde7453da5c4d0d6a358510b819c20894eb74e6443df1477

Download Submit
memory/2668-289-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2668-277-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2668-228-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2668-331-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2668-321-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2668-311-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2668-239-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2668-249-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2668-301-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2668-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2668-261-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2668-271-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2768-302-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2768-9-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2768-282-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2768-262-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2768-290-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2768-250-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2768-272-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2768-312-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2768-240-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2768-230-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2768-322-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2768-229-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2768-332-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads