a0287b5cf466f194ce92028e523b5e4078d54efbb637bc52c0ef49f4b7848908

Analysis

max time kernel
148s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
19-10-2022 00:50

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General

Target

a0287b5cf466f194ce92028e523b5e4078d54efbb637bc52c0ef49f4b7848908.exe
Size

404KB
MD5

bf80ba0b64b243e2915706a379683987
SHA1

9c6efd616cf602df0511de2b941989f7854bdd32
SHA256

a0287b5cf466f194ce92028e523b5e4078d54efbb637bc52c0ef49f4b7848908
SHA512

bebfb7cb09052269371277ac03b0f3c4d78488daebb56a99e6272ae45218158ca7ffdf484c37bf66812d3ab7b2eb9cb1e5109ffceffd10363f66eb9bdde43d2e
SSDEEP

6144:4jlYKRF/LReWAsUyXj9x1vG0VmQg+XHAvKHuxGh6QT72ZihmVen3p:4jauDReWZj9jvVmQtgiHfTiZ0Ue3p

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1168	ukstr.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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft® Windows® Operating System = "C:\\ProgramData\\ukstr.exe"	ukstr.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 3 IoCs

description	pid	Process	procid_target
PID 1800 wrote to memory of 1168	1800	a0287b5cf466f194ce92028e523b5e4078d54efbb637bc52c0ef49f4b7848908.exe	82
PID 1800 wrote to memory of 1168	1800	a0287b5cf466f194ce92028e523b5e4078d54efbb637bc52c0ef49f4b7848908.exe	82
PID 1800 wrote to memory of 1168	1800	a0287b5cf466f194ce92028e523b5e4078d54efbb637bc52c0ef49f4b7848908.exe	82

C:\Users\Admin\AppData\Local\Temp\a0287b5cf466f194ce92028e523b5e4078d54efbb637bc52c0ef49f4b7848908.exe
"C:\Users\Admin\AppData\Local\Temp\a0287b5cf466f194ce92028e523b5e4078d54efbb637bc52c0ef49f4b7848908.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1800
- C:\ProgramData\ukstr.exe
  "C:\ProgramData\ukstr.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  PID:1168

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
136KB

MD5
cb4c442a26bb46671c638c794bf535af

SHA1
8a742d0b372f2ddd2d1fdf688c3c4ac7f9272abf

SHA256
f8d2c17bdf34ccfb58070ac8b131a8d95055340101a329f9a7212ac5240d0c25

SHA512
074a31e8da403c0a718f93cbca50574d8b658921193db0e6e20eacd232379286f14a3698cd443dc740d324ad19d74934ae001a7ad64b88897d8afefbc9a3d4e3

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

Filesize
136KB

MD5
cb4c442a26bb46671c638c794bf535af

SHA1
8a742d0b372f2ddd2d1fdf688c3c4ac7f9272abf

SHA256
f8d2c17bdf34ccfb58070ac8b131a8d95055340101a329f9a7212ac5240d0c25

SHA512
074a31e8da403c0a718f93cbca50574d8b658921193db0e6e20eacd232379286f14a3698cd443dc740d324ad19d74934ae001a7ad64b88897d8afefbc9a3d4e3

Download Submit
C:\ProgramData\ukstr.exe

Filesize
267KB

MD5
ca1e2e773225c9da8f0563627deb76a0

SHA1
b47471aed6d27bbd7d2ebbb26bc46dcb093cbc6b

SHA256
a1b02ae60414e1d9d6eed2c0c030b0500b061656637931752752706112e6473d

SHA512
34cdeb0bc6312a4f193fef639ff527c9f3053bf99a4a023bb6b3a5abefefdc88ab95f932dc8a7b65e5cc5c554dc5d18c80ba58622cca4cad3f005e979af51ecf

Download Submit
C:\ProgramData\ukstr.exe

Filesize
267KB

MD5
ca1e2e773225c9da8f0563627deb76a0

SHA1
b47471aed6d27bbd7d2ebbb26bc46dcb093cbc6b

SHA256
a1b02ae60414e1d9d6eed2c0c030b0500b061656637931752752706112e6473d

SHA512
34cdeb0bc6312a4f193fef639ff527c9f3053bf99a4a023bb6b3a5abefefdc88ab95f932dc8a7b65e5cc5c554dc5d18c80ba58622cca4cad3f005e979af51ecf

Download Submit
memory/1800-132-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/1800-133-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/1800-138-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download