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
behavioral1/memory/316-0-0x0000000002260000-0x00000000022C0000-memory.dmp	buer
behavioral1/memory/316-1-0x0000000040000000-0x000000004005D000-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)	\??\H:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\J:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\L:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\Q:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\S:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\U:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\V:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\B:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\Z:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\K:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\M:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\O:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\X:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\G:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\R:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\W:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\I:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\E:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\F:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\N:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\P:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\T:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\Y:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe
File opened (read-only)	\??\A:	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
768	powershell.exe
768	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	768	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 316 wrote to memory of 768	316	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe	24
PID 316 wrote to memory of 768	316	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe	24
PID 316 wrote to memory of 768	316	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe	24
PID 316 wrote to memory of 768	316	9ec189cd724b3f7007266e5bae55a5b282849f3221df6b2e2b9aad3390594c17.exe	24

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:316
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -Command "& {Add-MpPreference -ExclusionPath C:\ProgramData\220888ebd30cb5b1e571}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:768

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/316-0-0x0000000002260000-0x00000000022C0000-memory.dmp

Filesize
384KB

Download
memory/316-1-0x0000000040000000-0x000000004005D000-memory.dmp

Filesize
372KB

Download
memory/768-3-0x00000000742F0000-0x00000000749DE000-memory.dmp

Filesize
6.9MB

Download
memory/768-4-0x00000000006A0000-0x00000000006A1000-memory.dmp

Filesize
4KB

Download
memory/768-5-0x0000000004850000-0x0000000004851000-memory.dmp

Filesize
4KB

Download
memory/768-6-0x0000000000FE0000-0x0000000000FE1000-memory.dmp

Filesize
4KB

Download
memory/768-7-0x00000000047C0000-0x00000000047C1000-memory.dmp

Filesize
4KB

Download
memory/768-10-0x0000000005620000-0x0000000005621000-memory.dmp

Filesize
4KB

Download
memory/768-15-0x0000000005700000-0x0000000005701000-memory.dmp

Filesize
4KB

Download
memory/768-16-0x0000000005790000-0x0000000005791000-memory.dmp

Filesize
4KB

Download
memory/768-23-0x0000000006280000-0x0000000006281000-memory.dmp

Filesize
4KB

Download
memory/768-24-0x0000000005850000-0x0000000005851000-memory.dmp

Filesize
4KB

Download
memory/768-38-0x0000000006300000-0x0000000006301000-memory.dmp

Filesize
4KB

Download
memory/768-39-0x0000000006310000-0x0000000006311000-memory.dmp

Filesize
4KB

Download

Analysis

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