759271d155300828f936887041c5f7a91f490c4fb603e45b34705d47ce6ae1b4

Analysis

max time kernel
110s
max time network
94s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
14/10/2024, 03:18

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General

Target

759271d155300828f936887041c5f7a91f490c4fb603e45b34705d47ce6ae1b4N.exe
Size

50KB
MD5

52908cc17e4fe3bb780a03deecdb3e30
SHA1

f1f663aad36b2fabc4f457a4fff71368f07a0274
SHA256

759271d155300828f936887041c5f7a91f490c4fb603e45b34705d47ce6ae1b4
SHA512

fbaaa99af83e40ed7c70790304298706ecb6dd295bc391a04f73f343e2c7e23cbd1fad87b67599780a8b91eb70e2ec97a2c70682b141117351bcf97f26e45672
SSDEEP

768:hvQ5qDLHRdw2iPSMEk/6KMvu571xBmPU96cyXH9zlll8555gA:hvQoLHjw2iWPKMvw71/RLyXfA

Score

7^/10

defense_evasion discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1620	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2092	rwmhost.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\rwmhost.exe	759271d155300828f936887041c5f7a91f490c4fb603e45b34705d47ce6ae1b4N.exe
File opened for modification	C:\Windows\Debug\rwmhost.exe	759271d155300828f936887041c5f7a91f490c4fb603e45b34705d47ce6ae1b4N.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	759271d155300828f936887041c5f7a91f490c4fb603e45b34705d47ce6ae1b4N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rwmhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rwmhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	rwmhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2520	759271d155300828f936887041c5f7a91f490c4fb603e45b34705d47ce6ae1b4N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 1620	2520	759271d155300828f936887041c5f7a91f490c4fb603e45b34705d47ce6ae1b4N.exe	31
PID 2520 wrote to memory of 1620	2520	759271d155300828f936887041c5f7a91f490c4fb603e45b34705d47ce6ae1b4N.exe	31
PID 2520 wrote to memory of 1620	2520	759271d155300828f936887041c5f7a91f490c4fb603e45b34705d47ce6ae1b4N.exe	31
PID 2520 wrote to memory of 1620	2520	759271d155300828f936887041c5f7a91f490c4fb603e45b34705d47ce6ae1b4N.exe	31

C:\Users\Admin\AppData\Local\Temp\759271d155300828f936887041c5f7a91f490c4fb603e45b34705d47ce6ae1b4N.exe
"C:\Users\Admin\AppData\Local\Temp\759271d155300828f936887041c5f7a91f490c4fb603e45b34705d47ce6ae1b4N.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\759271~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1620

C:\Windows\Debug\rwmhost.exe
C:\Windows\Debug\rwmhost.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Checks processor information in registry
PID:2092

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\debug\rwmhost.exe

Filesize
50KB

MD5
4c67d77d3aeaadf68417ae3493e5dda7

SHA1
9e94fc93e326fea257e526d6099f60ca02f51306

SHA256
f673597b6b0fa844e55dffa3e41e0d298b253a3e121df0fdde3da43c33cc702e

SHA512
c2f7d98ae74e82ed73fea0c2ef50d3f9f5a084c48f854ba944ec1ca72d637b9e5847ee2447a015a29040e76ef2d501b28982f7367090e2a4286699b6ba124d9c

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