e99a4250e2695925bd1dc2dede0581334e9607e2ef003d2ae91e9a135adf4467

Analysis

max time kernel
150s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
05-05-2024 05:33

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General

Target

e99a4250e2695925bd1dc2dede0581334e9607e2ef003d2ae91e9a135adf4467.exe
Size

880KB
MD5

8f62f4d2123e646dbe41a20e37d944c2
SHA1

3a5ab04da18b1a1d5be35634122a8cb15ec6fe80
SHA256

e99a4250e2695925bd1dc2dede0581334e9607e2ef003d2ae91e9a135adf4467
SHA512

e0ec67f35c0c6d016a335085e51a4dfd8cca20b6b59c9d586793ac62f04fae4b62dde7a32a43d567e669c8c78ee109e51e5e1a435e1219f995b4f20f2f76bf76
SSDEEP

12288:4jauDReWokIrYXtTvjPbRPLDDMMawkVztEsQW4ebW6rxcH6zVU8Aw:4DDcSPebnbNGj83

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4676	byler.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-1-5-21-17203666-93769886-2545153620-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft® Windows® Operating System = "C:\\ProgramData\\byler.exe"	byler.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 208 wrote to memory of 4676	208	e99a4250e2695925bd1dc2dede0581334e9607e2ef003d2ae91e9a135adf4467.exe	83
PID 208 wrote to memory of 4676	208	e99a4250e2695925bd1dc2dede0581334e9607e2ef003d2ae91e9a135adf4467.exe	83
PID 208 wrote to memory of 4676	208	e99a4250e2695925bd1dc2dede0581334e9607e2ef003d2ae91e9a135adf4467.exe	83

C:\Users\Admin\AppData\Local\Temp\e99a4250e2695925bd1dc2dede0581334e9607e2ef003d2ae91e9a135adf4467.exe
"C:\Users\Admin\AppData\Local\Temp\e99a4250e2695925bd1dc2dede0581334e9607e2ef003d2ae91e9a135adf4467.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:208
- C:\ProgramData\byler.exe
  "C:\ProgramData\byler.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  PID:4676

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 Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Documents and Settings .exe

Filesize
880KB

MD5
b949661fe10aab1337ac08276486f4a8

SHA1
159741738668b9a792c48f933ae21871350e09cb

SHA256
4a715a3d2a9200574676c181e61eb477a786d2561a54cfc9661e2bb6540e418f

SHA512
d5b3a92ebdf80e6a8de10b79a047997220de518cab1029d4c57111e5dcb0cbd0f9ae723cf8141536c822e6baf10f8ae73050c3d4a4655cbc06b90abd688757ca

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

Filesize
136KB

MD5
cb4c442a26bb46671c638c794bf535af

SHA1
8a742d0b372f2ddd2d1fdf688c3c4ac7f9272abf

SHA256
f8d2c17bdf34ccfb58070ac8b131a8d95055340101a329f9a7212ac5240d0c25

SHA512
074a31e8da403c0a718f93cbca50574d8b658921193db0e6e20eacd232379286f14a3698cd443dc740d324ad19d74934ae001a7ad64b88897d8afefbc9a3d4e3

Download Submit
C:\ProgramData\byler.exe

Filesize
743KB

MD5
10505cd45d242aa00845b18de1db42f0

SHA1
c8df59f4deaee33d8438db55e7e4a285a9ae25b2

SHA256
9717807beea75bdeea3f377bdec6b19215dd3da046e453a3ad1f8a9c46602067

SHA512
7a54c783b494007b8ad80cc79aef78e952e004b115a05d31e04535c7a07927ec98aa5011b892832928fc6019b789b1fb9b731fd94fefba3d42d90643f547033c

Download Submit
memory/208-0-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/208-1-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/208-9-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/4676-130-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads