c5491d28f6855c78d09f1a90926706abc33a53255e62950d101468ae6d7f82fd

Analysis

max time kernel
185s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
02/10/2022, 22:37

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General

Target

c5491d28f6855c78d09f1a90926706abc33a53255e62950d101468ae6d7f82fd.exe
Size

932KB
MD5

6f25a2b76ca932ff482f2da717fb3840
SHA1

73b8b0025e1cc7f066965cceb21ad90b4b27c9af
SHA256

c5491d28f6855c78d09f1a90926706abc33a53255e62950d101468ae6d7f82fd
SHA512

21164118d4d413965b54670388c9755b5174117908a4d6c023c2e8ba4774b445d8e8077d92abd575d3a847a02c6add41ee9eddd97a26f8f494dce71edeb423c5
SSDEEP

12288:71/aGLDCMNpNAkoSzZWD8ayX2MQCw7D0FoWxJpcEi0/3IWV//7cSdpwPDtBZcUIc:71/aGLDCM4D8ayGMZo8/FEeFqIRYsNJg

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
948	bsuti.exe

Loads dropped DLL 2 IoCs

pid	Process
1668	c5491d28f6855c78d09f1a90926706abc33a53255e62950d101468ae6d7f82fd.exe
1668	c5491d28f6855c78d09f1a90926706abc33a53255e62950d101468ae6d7f82fd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft® Windows® Operating System = "C:\\ProgramData\\bsuti.exe"	bsuti.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 948	1668	c5491d28f6855c78d09f1a90926706abc33a53255e62950d101468ae6d7f82fd.exe	28
PID 1668 wrote to memory of 948	1668	c5491d28f6855c78d09f1a90926706abc33a53255e62950d101468ae6d7f82fd.exe	28
PID 1668 wrote to memory of 948	1668	c5491d28f6855c78d09f1a90926706abc33a53255e62950d101468ae6d7f82fd.exe	28
PID 1668 wrote to memory of 948	1668	c5491d28f6855c78d09f1a90926706abc33a53255e62950d101468ae6d7f82fd.exe	28

C:\Users\Admin\AppData\Local\Temp\c5491d28f6855c78d09f1a90926706abc33a53255e62950d101468ae6d7f82fd.exe
"C:\Users\Admin\AppData\Local\Temp\c5491d28f6855c78d09f1a90926706abc33a53255e62950d101468ae6d7f82fd.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1668
- C:\ProgramData\bsuti.exe
  "C:\ProgramData\bsuti.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  PID:948

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Saaaalamm\Mira.h

Filesize
477KB

MD5
71e38cb8371fa644436922e0eee6040d

SHA1
6e9e897cb95fd8434891e87a584f5f1b9482cae2

SHA256
2c97f31658ca63791439d384a5c4488bdca89adac6c363c2cc97e5763af30db4

SHA512
852954de6ce9732c6533d475ebd22f308c5659690d5197dd5865cde0ef740b40f380035baf8d9e6e38dc0541b5f16ffb01ea1560cbb89528ec4b2214c7fcc3be

Download Submit
C:\ProgramData\bsuti.exe

Filesize
454KB

MD5
ba102ccc531c820291215b2cebd2cd17

SHA1
4639ea0ac6cd612ef8a84603917f84e387fb5dc8

SHA256
1a87050c480398eac0b22df18ba01923426fbd4051742695e3b2520dab52bdfc

SHA512
d339ca12d57b0c5d54d8334ef17037ebb894d91f463f6af9569dbdae05310c9574c97ae5078d3769920519454b95a2c1b22d0cd38b51e3213866e862b0067a4e

Download Submit
C:\ProgramData\bsuti.exe

Filesize
454KB

MD5
ba102ccc531c820291215b2cebd2cd17

SHA1
4639ea0ac6cd612ef8a84603917f84e387fb5dc8

SHA256
1a87050c480398eac0b22df18ba01923426fbd4051742695e3b2520dab52bdfc

SHA512
d339ca12d57b0c5d54d8334ef17037ebb894d91f463f6af9569dbdae05310c9574c97ae5078d3769920519454b95a2c1b22d0cd38b51e3213866e862b0067a4e

Download Submit
\ProgramData\bsuti.exe

Filesize
454KB

MD5
ba102ccc531c820291215b2cebd2cd17

SHA1
4639ea0ac6cd612ef8a84603917f84e387fb5dc8

SHA256
1a87050c480398eac0b22df18ba01923426fbd4051742695e3b2520dab52bdfc

SHA512
d339ca12d57b0c5d54d8334ef17037ebb894d91f463f6af9569dbdae05310c9574c97ae5078d3769920519454b95a2c1b22d0cd38b51e3213866e862b0067a4e

Download Submit
\ProgramData\bsuti.exe

Filesize
454KB

MD5
ba102ccc531c820291215b2cebd2cd17

SHA1
4639ea0ac6cd612ef8a84603917f84e387fb5dc8

SHA256
1a87050c480398eac0b22df18ba01923426fbd4051742695e3b2520dab52bdfc

SHA512
d339ca12d57b0c5d54d8334ef17037ebb894d91f463f6af9569dbdae05310c9574c97ae5078d3769920519454b95a2c1b22d0cd38b51e3213866e862b0067a4e

Download Submit
memory/1668-54-0x0000000076711000-0x0000000076713000-memory.dmp

Filesize
8KB

Download
memory/1668-55-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1668-61-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download