guloader | 67fc25f92a3074fe21704051a8aa72d438d5a06030cc7630db7e95953a998c90

Analysis

max time kernel
131s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
08-02-2023 20:01

Target

Rechnungen-2022.exe
Size

616KB
MD5

59ac1cfddea69fa213b747faad3f0f62
SHA1

a7a2a21106b999828444ad16265ff339a2775f99
SHA256

67fc25f92a3074fe21704051a8aa72d438d5a06030cc7630db7e95953a998c90
SHA512

856534b24f4b0ae0a29a8ed740048b321e15593fed0cdf98bc816d04656e2b5d89042859342e52682e3817d9a9ec825fdda2c3502bc19781295fd40498aab368
SSDEEP

12288:lbif/mHZzu6uhuQgRN6Zuj90Z2upnDgy/HE0P3Q8x78IV7tc4NCp:Rif/mHZzutuQgHt90TnDgck0ILI1tco0

Score

10^/10

Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader
Loads dropped DLL 1 IoCs

Processes:

Rechnungen-2022.exe

pid process

5040 Rechnungen-2022.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
5040	Rechnungen-2022.exe

C:\Users\Admin\AppData\Local\Temp\Rechnungen-2022.exe
"C:\Users\Admin\AppData\Local\Temp\Rechnungen-2022.exe"
1⤵
- Loads dropped DLL
PID:5040

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

C:\Users\Admin\AppData\Local\Temp\nsd771B.tmp\System.dll
Filesize
11KB

MD5
0ff2d70cfdc8095ea99ca2dabbec3cd7

SHA1
10c51496d37cecd0e8a503a5a9bb2329d9b38116

SHA256
982c5fb7ada7d8c9bc3e419d1c35da6f05bc5dd845940c179af3a33d00a36a8b

SHA512
cb5fc0b3194f469b833c2c9abf493fcec5251e8609881b7f5e095b9bd09ed468168e95dda0ba415a7d8d6b7f0dee735467c0ed8e52b223eb5359986891ba6e2e

Download Submit
memory/5040-133-0x0000000004220000-0x0000000005F9E000-memory.dmp

Filesize
29.5MB

Download
memory/5040-134-0x0000000004220000-0x0000000005F9E000-memory.dmp

Filesize
29.5MB

Download