buer | 9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17

General

Target

9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
Size

1.3MB
MD5

87f0180d068e273e554db3e2c5ed34b8
SHA1

b60648cb7e2f555be32ca13ef38cc2267e062e1c
SHA256

9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17
SHA512

ef51441152a84b2a4481f11eb2a149d957f87d0c88cd0a9e1cf88924dc5587e43250725fd010147989550c4cbf74532a9e251ad036b71c17e70d809811fdf402

Score

10^/10

buer loader

Malware Config

Extracted

Family

buer

C2

https://supsuncorner.com/

Signatures

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

Buer Loader 2 IoCs

Detects Buer loader in memory or disk.

resource	yara_rule
behavioral2/memory/344-0-0x0000000000FA0000-0x0000000001000000-memory.dmp	buer
behavioral2/memory/344-1-0x0000000040000000-0x000000004005D000-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)	\??\E:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\G:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\N:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\V:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\F:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\H:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\I:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\M:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\P:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\Y:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\X:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\J:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\O:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\Q:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\R:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\S:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\T:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\U:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\Z:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\A:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\B:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\K:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\L:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\W:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2996	powershell.exe
2996	powershell.exe
2996	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2996	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 344 wrote to memory of 2996	344	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe	73
PID 344 wrote to memory of 2996	344	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe	73
PID 344 wrote to memory of 2996	344	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe	73

C:\Users\Admin\AppData\Local\Temp\9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
"C:\Users\Admin\AppData\Local\Temp\9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe"
1⤵
- Enumerates connected drives
- Suspicious use of WriteProcessMemory
PID:344
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -Command "& {Add-MpPreference -ExclusionPath C:\ProgramData\2b9b27820b38167dad19}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2996

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/344-0-0x0000000000FA0000-0x0000000001000000-memory.dmp

Filesize
384KB

Download
memory/344-1-0x0000000040000000-0x000000004005D000-memory.dmp

Filesize
372KB

Download
memory/2996-3-0x0000000073BA0000-0x000000007428E000-memory.dmp

Filesize
6.9MB

Download
memory/2996-4-0x00000000049A0000-0x00000000049A1000-memory.dmp

Filesize
4KB

Download
memory/2996-5-0x0000000007130000-0x0000000007131000-memory.dmp

Filesize
4KB

Download
memory/2996-6-0x0000000006FA0000-0x0000000006FA1000-memory.dmp

Filesize
4KB

Download
memory/2996-7-0x00000000077D0000-0x00000000077D1000-memory.dmp

Filesize
4KB

Download
memory/2996-8-0x0000000007840000-0x0000000007841000-memory.dmp

Filesize
4KB

Download
memory/2996-9-0x00000000079B0000-0x00000000079B1000-memory.dmp

Filesize
4KB

Download
memory/2996-10-0x0000000007E40000-0x0000000007E41000-memory.dmp

Filesize
4KB

Download
memory/2996-11-0x0000000008320000-0x0000000008321000-memory.dmp

Filesize
4KB

Download
memory/2996-12-0x0000000008130000-0x0000000008131000-memory.dmp

Filesize
4KB

Download
memory/2996-14-0x0000000008EE0000-0x0000000008F13000-memory.dmp

Filesize
204KB

Download
memory/2996-21-0x0000000008EC0000-0x0000000008EC1000-memory.dmp

Filesize
4KB

Download
memory/2996-22-0x0000000009240000-0x0000000009241000-memory.dmp

Filesize
4KB

Download
memory/2996-23-0x0000000009470000-0x0000000009471000-memory.dmp

Filesize
4KB

Download
memory/2996-24-0x00000000093D0000-0x00000000093D1000-memory.dmp

Filesize
4KB

Download
memory/2996-26-0x00000000093A0000-0x00000000093A1000-memory.dmp

Filesize
4KB

Download

Analysis

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