a0f267ce25b8317beea96b42dd1d0b4e211a873cac9b2e3bcfff89f8d1c514e0

Resubmissions

14/02/2024, 04:27

240214-e28z5sac24 7

14/02/2024, 04:11

240214-erxjcsgf8z 10

14/02/2024, 04:02

240214-els9rahf93 10

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14/02/2024, 04:11

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Report Analysis Logs

General

Target

Keygen.exe
Size

200KB
MD5

9718045f5002b741172a6c659e3b97fd
SHA1

101403393b50c9de54efc4370d078922ba5f7c47
SHA256

2a8eea400ff4d71f70d7d3b5d5ff6e636a98c84fbcb6217d5ac705a10a3b1fa7
SHA512

2a68394fba1c7585d8c37fd5811285d064579a411e7d7b0616a17164f3ddccc15557e35062b03f3c5a4634b00913dad71d1756d94683571dedab8423372a9a88
SSDEEP

3072:9EbmpgY+Iu0VSdVe4DOprtjG+URYEPZL4jAoI0PRy2XDZd+p6ewDejhqrY5S/+9T:O93Iwe4qDjGR/y0oDdNd+E2qrvWIMk

Score

8^/10

persistence upx

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Checks BIOS information in registry 2 TTPs 1 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Keygen.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1048-0-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/1048-3-0x0000000000400000-0x0000000000455000-memory.dmp	upx

Enumerates connected drives 3 TTPs 21 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)	\??\i:	Keygen.exe
File opened (read-only)	\??\g:	Keygen.exe
File opened (read-only)	\??\y:	Keygen.exe
File opened (read-only)	\??\q:	Keygen.exe
File opened (read-only)	\??\m:	Keygen.exe
File opened (read-only)	\??\j:	Keygen.exe
File opened (read-only)	\??\k:	Keygen.exe
File opened (read-only)	\??\v:	Keygen.exe
File opened (read-only)	\??\u:	Keygen.exe
File opened (read-only)	\??\p:	Keygen.exe
File opened (read-only)	\??\n:	Keygen.exe
File opened (read-only)	\??\e:	Keygen.exe
File opened (read-only)	\??\z:	Keygen.exe
File opened (read-only)	\??\x:	Keygen.exe
File opened (read-only)	\??\s:	Keygen.exe
File opened (read-only)	\??\l:	Keygen.exe
File opened (read-only)	\??\h:	Keygen.exe
File opened (read-only)	\??\w:	Keygen.exe
File opened (read-only)	\??\t:	Keygen.exe
File opened (read-only)	\??\r:	Keygen.exe
File opened (read-only)	\??\o:	Keygen.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\mssys.dll	Keygen.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe

Suspicious behavior: MapViewOfSection 21 IoCs

pid	Process
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe
1048	Keygen.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1048	Keygen.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1048 wrote to memory of 384	1048	Keygen.exe	25
PID 1048 wrote to memory of 384	1048	Keygen.exe	25
PID 1048 wrote to memory of 384	1048	Keygen.exe	25
PID 1048 wrote to memory of 384	1048	Keygen.exe	25
PID 1048 wrote to memory of 384	1048	Keygen.exe	25
PID 1048 wrote to memory of 384	1048	Keygen.exe	25
PID 1048 wrote to memory of 384	1048	Keygen.exe	25
PID 1048 wrote to memory of 400	1048	Keygen.exe	24
PID 1048 wrote to memory of 400	1048	Keygen.exe	24
PID 1048 wrote to memory of 400	1048	Keygen.exe	24
PID 1048 wrote to memory of 400	1048	Keygen.exe	24
PID 1048 wrote to memory of 400	1048	Keygen.exe	24
PID 1048 wrote to memory of 400	1048	Keygen.exe	24
PID 1048 wrote to memory of 400	1048	Keygen.exe	24
PID 1048 wrote to memory of 436	1048	Keygen.exe	23
PID 1048 wrote to memory of 436	1048	Keygen.exe	23
PID 1048 wrote to memory of 436	1048	Keygen.exe	23
PID 1048 wrote to memory of 436	1048	Keygen.exe	23
PID 1048 wrote to memory of 436	1048	Keygen.exe	23
PID 1048 wrote to memory of 436	1048	Keygen.exe	23
PID 1048 wrote to memory of 436	1048	Keygen.exe	23
PID 1048 wrote to memory of 480	1048	Keygen.exe	22
PID 1048 wrote to memory of 480	1048	Keygen.exe	22
PID 1048 wrote to memory of 480	1048	Keygen.exe	22
PID 1048 wrote to memory of 480	1048	Keygen.exe	22
PID 1048 wrote to memory of 480	1048	Keygen.exe	22
PID 1048 wrote to memory of 480	1048	Keygen.exe	22
PID 1048 wrote to memory of 480	1048	Keygen.exe	22
PID 1048 wrote to memory of 496	1048	Keygen.exe	21
PID 1048 wrote to memory of 496	1048	Keygen.exe	21
PID 1048 wrote to memory of 496	1048	Keygen.exe	21
PID 1048 wrote to memory of 496	1048	Keygen.exe	21
PID 1048 wrote to memory of 496	1048	Keygen.exe	21
PID 1048 wrote to memory of 496	1048	Keygen.exe	21
PID 1048 wrote to memory of 496	1048	Keygen.exe	21
PID 1048 wrote to memory of 504	1048	Keygen.exe	1
PID 1048 wrote to memory of 504	1048	Keygen.exe	1
PID 1048 wrote to memory of 504	1048	Keygen.exe	1
PID 1048 wrote to memory of 504	1048	Keygen.exe	1
PID 1048 wrote to memory of 504	1048	Keygen.exe	1
PID 1048 wrote to memory of 504	1048	Keygen.exe	1
PID 1048 wrote to memory of 504	1048	Keygen.exe	1
PID 1048 wrote to memory of 616	1048	Keygen.exe	20
PID 1048 wrote to memory of 616	1048	Keygen.exe	20
PID 1048 wrote to memory of 616	1048	Keygen.exe	20
PID 1048 wrote to memory of 616	1048	Keygen.exe	20
PID 1048 wrote to memory of 616	1048	Keygen.exe	20
PID 1048 wrote to memory of 616	1048	Keygen.exe	20
PID 1048 wrote to memory of 616	1048	Keygen.exe	20
PID 1048 wrote to memory of 696	1048	Keygen.exe	19
PID 1048 wrote to memory of 696	1048	Keygen.exe	19
PID 1048 wrote to memory of 696	1048	Keygen.exe	19
PID 1048 wrote to memory of 696	1048	Keygen.exe	19
PID 1048 wrote to memory of 696	1048	Keygen.exe	19
PID 1048 wrote to memory of 696	1048	Keygen.exe	19
PID 1048 wrote to memory of 696	1048	Keygen.exe	19
PID 1048 wrote to memory of 760	1048	Keygen.exe	18
PID 1048 wrote to memory of 760	1048	Keygen.exe	18
PID 1048 wrote to memory of 760	1048	Keygen.exe	18
PID 1048 wrote to memory of 760	1048	Keygen.exe	18
PID 1048 wrote to memory of 760	1048	Keygen.exe	18
PID 1048 wrote to memory of 760	1048	Keygen.exe	18
PID 1048 wrote to memory of 760	1048	Keygen.exe	18
PID 1048 wrote to memory of 828	1048	Keygen.exe	17

C:\Windows\system32\lsm.exe
C:\Windows\system32\lsm.exe
1⤵
PID:504

C:\Windows\system32\sppsvc.exe
C:\Windows\system32\sppsvc.exe
1⤵
PID:2132

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
1⤵
PID:2568

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1320

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1200
- C:\Users\Admin\AppData\Local\Temp\Keygen.exe
  "C:\Users\Admin\AppData\Local\Temp\Keygen.exe"
  2⤵
  - Checks BIOS information in registry
  - Enumerates connected drives
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1048

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1172

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1120

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
1⤵
PID:1080

C:\Windows\System32\spoolsv.exe
C:\Windows\System32\spoolsv.exe
1⤵
PID:312

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService
1⤵
PID:284

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService
1⤵
PID:976

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs
1⤵
PID:856

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
1⤵
PID:828

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
1⤵
PID:760

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k RPCSS
1⤵
PID:696

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch
1⤵
PID:616

C:\Windows\system32\lsass.exe
C:\Windows\system32\lsass.exe
1⤵
PID:496

C:\Windows\system32\services.exe
C:\Windows\system32\services.exe
1⤵
PID:480

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:436

C:\Windows\system32\csrss.exe
%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
1⤵
PID:400

C:\Windows\system32\wininit.exe
wininit.exe
1⤵
PID:384

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1048-0-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1048-2-0x00000000777E0000-0x00000000777E1000-memory.dmp

Filesize
4KB

Download
memory/1048-1-0x00000000777DF000-0x00000000777E0000-memory.dmp

Filesize
4KB

Download
memory/1048-3-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download