32df4fff13b8eceb0209eb922f2406d5e91e1aab87631d1304fbd0adee5f0ba9

Analysis

max time kernel
147s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
27/03/2024, 05:23

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General

Target

nfsrvsetup.exe
Size

4.6MB
MD5

66834f29bc47e63854a3c754a30e3e38
SHA1

99ece366fbfccb50c076cfce5a8a7978c36381ce
SHA256

1a6d0edb456c5c8234bcee09c57c4554dbd66acd6ac4002d7d10cc59cc7e00ed
SHA512

43ae151e098a851f9ac381a1ac6e04b1bcfb4a289d5a3bbfd74a0703e95317bcdda38350f1243dddbe63d2301260a7fdff9354a7ffb0ed45042f581c531c6d7b
SSDEEP

98304:kh2JkCCuum+SlZYPudfMKEBHITLWrls4leKtte6SUWMWXW:22JkVxmV7bdfqBoTSls4lFouXWm

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2020	is-VVFR9.tmp

Loads dropped DLL 2 IoCs

pid	Process
2020	is-VVFR9.tmp
2020	is-VVFR9.tmp

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 4044 wrote to memory of 2020	4044	nfsrvsetup.exe	89
PID 4044 wrote to memory of 2020	4044	nfsrvsetup.exe	89
PID 4044 wrote to memory of 2020	4044	nfsrvsetup.exe	89

C:\Users\Admin\AppData\Local\Temp\nfsrvsetup.exe
"C:\Users\Admin\AppData\Local\Temp\nfsrvsetup.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4044
- C:\Users\Admin\AppData\Local\Temp\is-6IQO9.tmp\is-VVFR9.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-6IQO9.tmp\is-VVFR9.tmp" /SL4 $401EE "C:\Users\Admin\AppData\Local\Temp\nfsrvsetup.exe" 4610724 52736
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\is-04RMN.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-6IQO9.tmp\is-VVFR9.tmp

Filesize
657KB

MD5
c0b0fbca8a1a513e12c1f018d32dbeb3

SHA1
828248cfada6b67b587336a37a394111434609b9

SHA256
5c278d68a914a63865aab5a683c0943d5f84ab218333b55fe65c2cb39cb0416a

SHA512
bb62e356bb79d012bb7d44dc2c9912df0a086395fde7232c999f5fb9ea314635e25dbb05b1d874f9946410ced9490f5f7d12687253ee1613a2cb2d2264a8443a

Download Submit
memory/2020-7-0x0000000002340000-0x0000000002341000-memory.dmp

Filesize
4KB

Download
memory/2020-20-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2020-23-0x0000000002340000-0x0000000002341000-memory.dmp

Filesize
4KB

Download
memory/4044-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4044-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4044-19-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download