a5bc3bb46a59bc8a052b9790b490fac15759e3fbac80fc09c8163c67c27529aa

Analysis

max time kernel
141s
max time network
127s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
27/08/2023, 00:21

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General

Target

a5bc3bb46a59bc8a052b9790b490fac15759e3fbac80fc09c8163c67c27529aa.exe
Size

197KB
MD5

cbb50fe5486c223a9f022679692d8317
SHA1

e7e1b2320d7be6137d3748cfc43066a70eb944bc
SHA256

a5bc3bb46a59bc8a052b9790b490fac15759e3fbac80fc09c8163c67c27529aa
SHA512

e2e157953acfe0b2be7d353ab8a072e443327b7474a9eafafaafa4cb59b224512d557bd50a4ceb1acc0bc6d046fbb5b7761b932b7a7850113c57c524731fd282
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOO:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXP

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1624	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1092	rwmhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\rwmhost.exe	a5bc3bb46a59bc8a052b9790b490fac15759e3fbac80fc09c8163c67c27529aa.exe
File opened for modification	C:\Windows\Debug\rwmhost.exe	a5bc3bb46a59bc8a052b9790b490fac15759e3fbac80fc09c8163c67c27529aa.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2332	a5bc3bb46a59bc8a052b9790b490fac15759e3fbac80fc09c8163c67c27529aa.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 1624	2332	a5bc3bb46a59bc8a052b9790b490fac15759e3fbac80fc09c8163c67c27529aa.exe	29
PID 2332 wrote to memory of 1624	2332	a5bc3bb46a59bc8a052b9790b490fac15759e3fbac80fc09c8163c67c27529aa.exe	29
PID 2332 wrote to memory of 1624	2332	a5bc3bb46a59bc8a052b9790b490fac15759e3fbac80fc09c8163c67c27529aa.exe	29
PID 2332 wrote to memory of 1624	2332	a5bc3bb46a59bc8a052b9790b490fac15759e3fbac80fc09c8163c67c27529aa.exe	29

C:\Users\Admin\AppData\Local\Temp\a5bc3bb46a59bc8a052b9790b490fac15759e3fbac80fc09c8163c67c27529aa.exe
"C:\Users\Admin\AppData\Local\Temp\a5bc3bb46a59bc8a052b9790b490fac15759e3fbac80fc09c8163c67c27529aa.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2332
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\A5BC3B~1.EXE > nul
  2⤵
  - Deletes itself
  PID:1624

C:\Windows\Debug\rwmhost.exe
C:\Windows\Debug\rwmhost.exe
1⤵
- Executes dropped EXE
PID:1092

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\debug\rwmhost.exe

Filesize
198KB

MD5
4a63bec7261bf644e8cdbda4a1264369

SHA1
0ec5ca00b7abefa701f240edb7400abe4504b087

SHA256
d3e5a423df37bf250c8ff05939af0518a3125308661ab77f457e7a8942bf23d4

SHA512
21abfce777e3214db36bd8680b5fad52a6c9966dbb5310a3e6ec7eef2496dec756c81b3a1c2ce4e371e67a8b4918eb6d8ad5aad043432af2e06f64c4e132b0bb

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