e9821cadf33dfdeb0b7f1bf2fdcc519e870250f32c5f60ee470510ec5db9a4be

Analysis

max time kernel
146s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
09/01/2024, 11:12

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General

Target

koanvcd.exe
Size

4.9MB
MD5

0ba02470dbcd7fff0d34e9627efad172
SHA1

ec8ece62cf17be713704504a544d3555ade7572f
SHA256

3f80b9f6d898273da0a7aeb3c342f1132215d1916888b3df4ea7d8bead58a4ad
SHA512

15b5c4ddbd67e0d8e68abc306cf58bddfa7b0169c780336fc9d9b811e03e995258782f7d9c0f878a96ce52dad3b7c5f943a679a21813bc460a381ca3d13683d2
SSDEEP

98304:Apc3HUGljmttNTPVJ3Ma+0Aa6CNy1chpffSyWtO2XZ3h6NnRfwR3C3p1iEAx+leS:p35k3h7caRNy1mpffS8a3ApkEA8NJ3

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
788	is-TGF6C.tmp

Loads dropped DLL 2 IoCs

pid	Process
788	is-TGF6C.tmp
788	is-TGF6C.tmp

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeManageVolumePrivilege	3784	svchost.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 788	2372	koanvcd.exe	90
PID 2372 wrote to memory of 788	2372	koanvcd.exe	90
PID 2372 wrote to memory of 788	2372	koanvcd.exe	90

C:\Users\Admin\AppData\Local\Temp\koanvcd.exe
"C:\Users\Admin\AppData\Local\Temp\koanvcd.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Users\Admin\AppData\Local\Temp\is-ETSME.tmp\is-TGF6C.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-ETSME.tmp\is-TGF6C.tmp" /SL4 $501D0 "C:\Users\Admin\AppData\Local\Temp\koanvcd.exe" 4930971 50688
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:788

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
1⤵
PID:2324

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k UnistackSvcGroup
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3784

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\Comms\UnistoreDB\store.jfm

Filesize
16KB

MD5
62e88f8e307b0bf6cdcff9008fd6e4f6

SHA1
3a76f5b490f5390b49430a8d7ff3dd13e734d88b

SHA256
bbc70c71ad37a0d823fcbb9849cfc843bfd1ee60b2c5677fbfc588386bba7e6c

SHA512
f4f474e86bc03eaf74f05a4d7c893950fce11be0e2c3608035afb4ad007c6eff28450412ad638d60a210dbb0974adb15857c250430d9a003c7bf66cc14965be5

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-87D4Q.tmp\_isetup\_isdecmp.dll

Filesize
32KB

MD5
b4786eb1e1a93633ad1b4c112514c893

SHA1
734750b771d0809c88508e4feb788d7701e6dada

SHA256
2ae4169f721beb389a661e6dbb18bc84ef38556af1f46807da9d87aec2a6f06f

SHA512
0882d2aa163ece22796f837111db0d55158098035005e57cd2e9b8d59dc2e582207840bf98bee534b81c368acf60ab5d8ecbe762209273bda067a215cdb2c0c6

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-ETSME.tmp\is-TGF6C.tmp

Filesize
641KB

MD5
fa8621bfc44318a0e45e5a3414345318

SHA1
29de99e82aa87911d0761c95632ffec405164d93

SHA256
6297413b839879d5ca391c1b8a3568bb07bee509748bcc6aa5b9906eaab8ae84

SHA512
797d3a9167b200f5eb8c2077d0e72d3359e602c8a665d6f0bec95387e7a8ffa5e7d4f3a0a827eb0cfb6f17392a8856624c01d9f5231d67d619dcc982c5ede1dc

Download Submit
memory/788-20-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/788-10-0x0000000000790000-0x0000000000791000-memory.dmp

Filesize
4KB

Download
memory/788-23-0x0000000000790000-0x0000000000791000-memory.dmp

Filesize
4KB

Download
memory/2372-19-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2372-0-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2372-2-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3784-46-0x0000019388340000-0x0000019388350000-memory.dmp

Filesize
64KB

Download
memory/3784-62-0x0000019388440000-0x0000019388450000-memory.dmp

Filesize
64KB

Download
memory/3784-78-0x0000019390A10000-0x0000019390A11000-memory.dmp

Filesize
4KB

Download
memory/3784-79-0x0000019390A30000-0x0000019390A31000-memory.dmp

Filesize
4KB

Download
memory/3784-80-0x0000019390A30000-0x0000019390A31000-memory.dmp

Filesize
4KB

Download
memory/3784-81-0x0000019390A30000-0x0000019390A31000-memory.dmp

Filesize
4KB

Download