61d9c0dc0a13aced9c78151daee797a05d5c6a88fa4a285bf0d6d8c11e602d2f

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-09-2024 12:40

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General

Target

550cf206978c8dc1e12b4d2a17b61530N.exe
Size

395KB
MD5

550cf206978c8dc1e12b4d2a17b61530
SHA1

2f25b8ab56a244cc81731f9fd078103841492bc7
SHA256

61d9c0dc0a13aced9c78151daee797a05d5c6a88fa4a285bf0d6d8c11e602d2f
SHA512

8a9d8322264acf983b1af8450b928e1136d4b37d24dc79d721c0249c31dd178985f89f7ef931de5cdd9233998ca2aee90ff800fb36ec383a8f71a5d66ec3f1d4
SSDEEP

6144:4jlYKRF/LReWAsUyEIsYUEH7Ei+1g7eXHIuis9nXLzydK0S0Yqzrx:4jauDReWyg+1G+AslXLzLg

Score

7^/10

discovery persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3040	prvos.exe

Loads dropped DLL 2 IoCs

pid	Process
2904	550cf206978c8dc1e12b4d2a17b61530N.exe
2904	550cf206978c8dc1e12b4d2a17b61530N.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft® Windows® Operating System = "C:\\ProgramData\\prvos.exe"	prvos.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	550cf206978c8dc1e12b4d2a17b61530N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	prvos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 3040	2904	550cf206978c8dc1e12b4d2a17b61530N.exe	30
PID 2904 wrote to memory of 3040	2904	550cf206978c8dc1e12b4d2a17b61530N.exe	30
PID 2904 wrote to memory of 3040	2904	550cf206978c8dc1e12b4d2a17b61530N.exe	30
PID 2904 wrote to memory of 3040	2904	550cf206978c8dc1e12b4d2a17b61530N.exe	30

C:\Users\Admin\AppData\Local\Temp\550cf206978c8dc1e12b4d2a17b61530N.exe
"C:\Users\Admin\AppData\Local\Temp\550cf206978c8dc1e12b4d2a17b61530N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2904
- C:\ProgramData\prvos.exe
  "C:\ProgramData\prvos.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  PID:3040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\MSOCache .exe

Filesize
395KB

MD5
a24754b4e2dbd1a817e84c51679dae30

SHA1
8d961e10c25603e93f4093837927ad037022c1e2

SHA256
e4ed318d85a489d8872ef8c410072416727871166c3f98acb6c837d278ef08ea

SHA512
7d99f27f00cc49e420c668fb209fe34b57dd64abb047d39509385c11fadb42ec338c90d11ba20ece8ec6268ec60bd7287c2bdeadffa94d0e862171d7690b9458

Download Submit
C:\ProgramData\Saaaalamm\Mira.h

Filesize
136KB

MD5
cb4c442a26bb46671c638c794bf535af

SHA1
8a742d0b372f2ddd2d1fdf688c3c4ac7f9272abf

SHA256
f8d2c17bdf34ccfb58070ac8b131a8d95055340101a329f9a7212ac5240d0c25

SHA512
074a31e8da403c0a718f93cbca50574d8b658921193db0e6e20eacd232379286f14a3698cd443dc740d324ad19d74934ae001a7ad64b88897d8afefbc9a3d4e3

Download Submit
C:\ProgramData\prvos.exe

Filesize
258KB

MD5
ce29858367204be08c220b00aeab5fa2

SHA1
2fb8de7e3060c497ccabb8823a18663c5367732b

SHA256
5fd08e00abec439859a04a0c93f4354e28fd06b152a86e14711b3715eed0bb08

SHA512
1aa11e997179b0e624383290ecc558177714bb5caf41db4c363138df72f591ccbfed71cf69690da3ea6be2c200d88ff53e44b945fdf5e52bb0cf5aa6e1b9d8f4

Download Submit
memory/2904-0-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/2904-1-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/2904-11-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/3040-131-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads