buer | 17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894

General

Target

17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
Size

384KB
MD5

a81d104e7bb627a4d3a0f0b823e17581
SHA1

ddc6f577463ff140e525cf7f4a4f083406acd1f4
SHA256

17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894
SHA512

18bc43f92dd794655a26529634f3683d183c2b130b4ced99a276f389c0e3f3c6f03763c5681ec4c80744dda0699d63919d25333f56295729733a2b09b5283b32

Score

10^/10

buer loader

Malware Config

Extracted

Family

buer

C2

https://kackdelar.top/

Signatures

Buer
Buer is a new modular loader first seen in August 2019.
loader buer

Buer Loader 3 IoCs

Detects Buer loader in memory or disk.

resource	yara_rule
behavioral2/memory/3372-14-0x0000000040000000-0x000000004000C000-memory.dmp	buer
behavioral2/memory/3372-15-0x0000000040002E38-mapping.dmp	buer
behavioral2/memory/3372-16-0x0000000040000000-0x000000004000C000-memory.dmp	buer

Enumerates connected drives 3 TTPs 24 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)	\??\L:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\U:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\X:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\P:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\S:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\E:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\F:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\G:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\I:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\M:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\O:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\V:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\H:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\Z:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\R:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\T:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\A:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\B:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\J:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\K:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\N:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\Q:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\W:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
File opened (read-only)	\??\Y:	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3816 set thread context of 3372	3816	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe	77

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
3980	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3816	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
3816	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
3816	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
408	powershell.exe
408	powershell.exe
408	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3816	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
Token: SeDebugPrivilege	408	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3816 wrote to memory of 3980	3816	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe	75
PID 3816 wrote to memory of 3980	3816	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe	75
PID 3816 wrote to memory of 3980	3816	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe	75
PID 3816 wrote to memory of 3372	3816	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe	77
PID 3816 wrote to memory of 3372	3816	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe	77
PID 3816 wrote to memory of 3372	3816	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe	77
PID 3816 wrote to memory of 3372	3816	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe	77
PID 3816 wrote to memory of 3372	3816	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe	77
PID 3816 wrote to memory of 3372	3816	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe	77
PID 3816 wrote to memory of 3372	3816	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe	77
PID 3816 wrote to memory of 3372	3816	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe	77
PID 3816 wrote to memory of 3372	3816	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe	77
PID 3372 wrote to memory of 408	3372	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe	78
PID 3372 wrote to memory of 408	3372	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe	78
PID 3372 wrote to memory of 408	3372	17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe	78

C:\Users\Admin\AppData\Local\Temp\17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
"C:\Users\Admin\AppData\Local\Temp\17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3816
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KUCeBegeqW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp11D3.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3980
- C:\Users\Admin\AppData\Local\Temp\17147bfbf7936c807449340f3cbcaf49f16e905d8f768b16f8c2e628bf49a894.exe
  "{path}"
  2⤵
  - Enumerates connected drives
  - Suspicious use of WriteProcessMemory
  PID:3372
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -Command "& {Add-MpPreference -ExclusionPath C:\ProgramData\8368fc09951cc8b0734c}"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:408

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/408-26-0x0000000007D60000-0x0000000007D61000-memory.dmp

Filesize
4KB

Download
memory/408-25-0x0000000006E20000-0x0000000006E21000-memory.dmp

Filesize
4KB

Download
memory/408-39-0x0000000008FB0000-0x0000000008FB1000-memory.dmp

Filesize
4KB

Download
memory/408-38-0x0000000009010000-0x0000000009011000-memory.dmp

Filesize
4KB

Download
memory/408-37-0x0000000008E40000-0x0000000008E41000-memory.dmp

Filesize
4KB

Download
memory/408-36-0x0000000008CD0000-0x0000000008CD1000-memory.dmp

Filesize
4KB

Download
memory/408-29-0x0000000008CF0000-0x0000000008D23000-memory.dmp

Filesize
204KB

Download
memory/408-27-0x0000000007DB0000-0x0000000007DB1000-memory.dmp

Filesize
4KB

Download
memory/408-18-0x0000000073960000-0x000000007404E000-memory.dmp

Filesize
6.9MB

Download
memory/408-24-0x00000000076E0000-0x00000000076E1000-memory.dmp

Filesize
4KB

Download
memory/408-23-0x0000000007490000-0x0000000007491000-memory.dmp

Filesize
4KB

Download
memory/408-21-0x0000000006C90000-0x0000000006C91000-memory.dmp

Filesize
4KB

Download
memory/408-20-0x0000000006E60000-0x0000000006E61000-memory.dmp

Filesize
4KB

Download
memory/408-19-0x00000000010E0000-0x00000000010E1000-memory.dmp

Filesize
4KB

Download
memory/408-41-0x0000000008FA0000-0x0000000008FA1000-memory.dmp

Filesize
4KB

Download
memory/3372-14-0x0000000040000000-0x000000004000C000-memory.dmp

Filesize
48KB

Download
memory/3372-16-0x0000000040000000-0x000000004000C000-memory.dmp

Filesize
48KB

Download
memory/3816-9-0x0000000007DD0000-0x0000000007E27000-memory.dmp

Filesize
348KB

Download
memory/3816-1-0x0000000000C90000-0x0000000000C91000-memory.dmp

Filesize
4KB

Download
memory/3816-3-0x0000000005980000-0x0000000005981000-memory.dmp

Filesize
4KB

Download
memory/3816-0-0x00000000738E0000-0x0000000073FCE000-memory.dmp

Filesize
6.9MB

Download
memory/3816-10-0x0000000007ED0000-0x0000000007ED1000-memory.dmp

Filesize
4KB

Download
memory/3816-11-0x0000000004FE0000-0x0000000005015000-memory.dmp

Filesize
212KB

Download
memory/3816-8-0x0000000007950000-0x0000000007951000-memory.dmp

Filesize
4KB

Download
memory/3816-7-0x0000000005910000-0x0000000005913000-memory.dmp

Filesize
12KB

Download
memory/3816-6-0x0000000005730000-0x0000000005731000-memory.dmp

Filesize
4KB

Download
memory/3816-5-0x0000000005520000-0x0000000005521000-memory.dmp

Filesize
4KB

Download
memory/3816-4-0x0000000005560000-0x0000000005561000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads