2d560f0a3391f0f773ac8fb17d4fc78a75c8e5db4fc1256d9a1a8ff8115efd5b

General

Target
E-DEKONT_001 pdf.exe
Size 446KB
Sample230907-tp87psbe6y
SHA256 2d560f0a3391f0f773ac8fb17d4fc78a75c8e5db4fc1256d9a1a8ff8115efd5b
MD5 599494a642bca2704d66594535918679
SHA1 43017b77c692a8f2f82d3cb0bbf1fc4e02d5f20f
SHA512 4e93947a7fa3a50c49a7566881c81e3a57c50e7cdb63b185e1ab1838573a5e0cb1628038bd21f479c77c4ba9341f703a4ad7098d4810f3cf45b8e382338a8002
SSDEEP 12288:mImiaZgI2Mru1gPaRIIgSnozhiDYInMT:msaZH2BqPaR3gRzhEYInMT
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1980726966-773384374-2129981223-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ssssssssssssss = "C:\\Users\\Admin\\AppData\\Roaming\\ssssssssssssss.exe"	E-DEKONT_001 pdf.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{2866FCD7-9532-4E05-A91C-D1736B46C5DC}.catalogItem	svchost.exe

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
4520	E-DEKONT_001 pdf.exe
4520	E-DEKONT_001 pdf.exe
4520	E-DEKONT_001 pdf.exe
4520	E-DEKONT_001 pdf.exe
4520	E-DEKONT_001 pdf.exe
4520	E-DEKONT_001 pdf.exe
4520	E-DEKONT_001 pdf.exe
4520	E-DEKONT_001 pdf.exe
4520	E-DEKONT_001 pdf.exe
4520	E-DEKONT_001 pdf.exe
4520	E-DEKONT_001 pdf.exe
4520	E-DEKONT_001 pdf.exe
4520	E-DEKONT_001 pdf.exe
4520	E-DEKONT_001 pdf.exe
4520	E-DEKONT_001 pdf.exe
4520	E-DEKONT_001 pdf.exe
4520	E-DEKONT_001 pdf.exe
4520	E-DEKONT_001 pdf.exe
4520	E-DEKONT_001 pdf.exe
4520	E-DEKONT_001 pdf.exe
4520	E-DEKONT_001 pdf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4520	E-DEKONT_001 pdf.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4520 wrote to memory of 3020	4520	E-DEKONT_001 pdf.exe	91
PID 4520 wrote to memory of 3020	4520	E-DEKONT_001 pdf.exe	91
PID 4520 wrote to memory of 3472	4520	E-DEKONT_001 pdf.exe	92
PID 4520 wrote to memory of 3472	4520	E-DEKONT_001 pdf.exe	92
PID 4520 wrote to memory of 2320	4520	E-DEKONT_001 pdf.exe	93
PID 4520 wrote to memory of 2320	4520	E-DEKONT_001 pdf.exe	93
PID 4520 wrote to memory of 692	4520	E-DEKONT_001 pdf.exe	94
PID 4520 wrote to memory of 692	4520	E-DEKONT_001 pdf.exe	94
PID 4520 wrote to memory of 4828	4520	E-DEKONT_001 pdf.exe	95
PID 4520 wrote to memory of 4828	4520	E-DEKONT_001 pdf.exe	95
PID 4520 wrote to memory of 408	4520	E-DEKONT_001 pdf.exe	96
PID 4520 wrote to memory of 408	4520	E-DEKONT_001 pdf.exe	96
PID 4520 wrote to memory of 4748	4520	E-DEKONT_001 pdf.exe	97
PID 4520 wrote to memory of 4748	4520	E-DEKONT_001 pdf.exe	97
PID 4520 wrote to memory of 3344	4520	E-DEKONT_001 pdf.exe	98
PID 4520 wrote to memory of 3344	4520	E-DEKONT_001 pdf.exe	98
PID 4520 wrote to memory of 904	4520	E-DEKONT_001 pdf.exe	99
PID 4520 wrote to memory of 904	4520	E-DEKONT_001 pdf.exe	99
PID 4520 wrote to memory of 996	4520	E-DEKONT_001 pdf.exe	100
PID 4520 wrote to memory of 996	4520	E-DEKONT_001 pdf.exe	100

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:3620

C:\Users\Admin\AppData\Local\Temp\E-DEKONT_001 pdf.exe
"C:\Users\Admin\AppData\Local\Temp\E-DEKONT_001 pdf.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4520
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  2⤵
  PID:3020
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  2⤵
  PID:3472
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  2⤵
  PID:2320
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  2⤵
  PID:692
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  2⤵
  PID:4828
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  2⤵
  PID:408
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  2⤵
  PID:4748
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  2⤵
  PID:3344
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  2⤵
  PID:904
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe
  2⤵
  PID:996