df90131c240ef4e9b9079e271d16bb1fa5d797ba57a227eb1883814f35358005

General

Target

Fernissagerne.exe
Size

778KB
MD5

a992bbd745fa0540c9b12c43f871be00
SHA1

0435dd15bfd760449e06c1dd2413a4963539ff27
SHA256

df90131c240ef4e9b9079e271d16bb1fa5d797ba57a227eb1883814f35358005
SHA512

fdbd173fcaec5728117e5a5de3382b5da110f61799571f60cbf755047b77c9024a638ad558a47316b300a0b7f2053baa05d321f76b09459ce05932d985299737
SSDEEP

24576:zr5Ob+mp4ZW3/EYSdCVNF45yRQLvf81BV2m6ionDuf:SGW3GC/e5yiX8HuD+

Score

8^/10

discovery execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2564	powershell.exe
2896	powershell.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\folkepensionsaldres\frostbiter.ini	Fernissagerne.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Stilting.Bra	Fernissagerne.exe
File opened for modification	C:\Program Files (x86)\unprobably.ini	Fernissagerne.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Levitters.lnk	Fernissagerne.exe
File opened for modification	C:\Windows\Levitters.lnk	Fernissagerne.exe
File opened for modification	C:\Windows\resources\beent.elv	Fernissagerne.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 3 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Fernissagerne.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2564	powershell.exe
2896	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2420	Fernissagerne.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2564	powershell.exe
Token: SeDebugPrivilege	2896	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2564	2420	Fernissagerne.exe	31
PID 2420 wrote to memory of 2564	2420	Fernissagerne.exe	31
PID 2420 wrote to memory of 2564	2420	Fernissagerne.exe	31
PID 2420 wrote to memory of 2564	2420	Fernissagerne.exe	31
PID 2420 wrote to memory of 2896	2420	Fernissagerne.exe	33
PID 2420 wrote to memory of 2896	2420	Fernissagerne.exe	33
PID 2420 wrote to memory of 2896	2420	Fernissagerne.exe	33
PID 2420 wrote to memory of 2896	2420	Fernissagerne.exe	33

C:\Users\Admin\AppData\Local\Temp\Fernissagerne.exe
"C:\Users\Admin\AppData\Local\Temp\Fernissagerne.exe"
1⤵
- Drops file in System32 directory
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -windowstyle hidden "$Spydspids=Get-Content -raw 'C:\Users\Admin\AppData\Local\Temp\Stragglier\Kmpehjenes.unt';$Gargle=$Spydspids.SubString(43550,3);.$Gargle($Spydspids)"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2564
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -windowstyle hidden "$Spydspids=Get-Content -raw 'C:\Users\Admin\AppData\Local\Temp\Stragglier\Kmpehjenes.unt';$Gargle=$Spydspids.SubString(43550,3);.$Gargle($Spydspids)"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2896

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\MTK8AQ0G3N5KOBP3PPI4.temp

Filesize
7KB

MD5
916e21365722d207065836565289a06d

SHA1
fad05b7fb24e004b11c4875783288b8053c85f16

SHA256
35984c5f24335fd6276a4e71cf349559b2a036c05cb07d5595e66f0d7a7893d6

SHA512
d35c134aad2990a6d0a587f62d26820f101d581e117003eeaad982e841ec173fc2ca91a2a380f746b1290927b94bd9ba59c2b22f749b2bf466de1cd2a0f9002a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
62cb4bf4693352892df064d7d168aefc

SHA1
4cb24f9d7d6bd1399ee5f420a3836ee9f4bdfbbd

SHA256
ef51619b3e60cf2bc1dda8f58b62790f4492583252bbb243c28975ac0e02de67

SHA512
60e16eb0c36c464b18ac9d567529890fac4f33d28e687f51c620c3211261cbcc4cb7d338da21bd2384536bfaef26b4b05ff3f8b1bae8317b5ecd538bacb94324

Download Submit
memory/2564-21-0x00000000737A0000-0x0000000073D4B000-memory.dmp

Filesize
5.7MB

Download
memory/2564-20-0x00000000737A0000-0x0000000073D4B000-memory.dmp

Filesize
5.7MB

Download
memory/2564-19-0x00000000737A0000-0x0000000073D4B000-memory.dmp

Filesize
5.7MB

Download
memory/2564-18-0x00000000737A0000-0x0000000073D4B000-memory.dmp

Filesize
5.7MB

Download
memory/2564-17-0x00000000737A0000-0x0000000073D4B000-memory.dmp

Filesize
5.7MB

Download
memory/2564-16-0x00000000737A1000-0x00000000737A2000-memory.dmp

Filesize
4KB

Download

Analysis

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