3e36732ff2a298a34acd083639cf0f8b1aef0e099965e6ff30706489bf1297d4 | Triage

Analysis

max time kernel
120s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
27/06/2024, 16:14

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General

Target

XlsLib.dll
Size

56KB
MD5

3b77f37e9f392d6482f995b21dd0d916
SHA1

0a2a9aad5c1b0618e7c594de03a675fd34afb916
SHA256

09cf0fd2e5c0685c97083fe40804855105db21c5a6156585614469ff3be42c92
SHA512

5e8f2883deb78df439e7604898feb06e736883a9b57fe4fda047775e0ac66104aa1f30ebd4318fefdf81081cb3a56017ee8a4b04d25201988b74416f0653ed8d
SSDEEP

768:iv+/bR84mPeopQ19FCshRocMVHWzdIJSZ/SLFzalyQIA+GX7dY:xTRRNd19FCPRJ+uJSZqpzVA+ce

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3884	5028	WerFault.exe	89

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5088 wrote to memory of 5028	5088	rundll32.exe	89
PID 5088 wrote to memory of 5028	5088	rundll32.exe	89
PID 5088 wrote to memory of 5028	5088	rundll32.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\XlsLib.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5088
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\XlsLib.dll,#1
  2⤵
  PID:5028
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5028 -s 916
    3⤵
    - Program crash
    PID:3884

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4180,i,1999448010053300448,1112699187621658374,262144 --variations-seed-version --mojo-platform-channel-handle=4228 /prefetch:8
1⤵
PID:3052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 5028 -ip 5028
1⤵
PID:2800

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/5028-0-0x0000000002840000-0x0000000002850000-memory.dmp

Filesize
64KB

Download
memory/5028-1-0x0000000074AAE000-0x0000000074AAF000-memory.dmp

Filesize
4KB

Download
memory/5028-2-0x0000000002870000-0x0000000002881000-memory.dmp

Filesize
68KB

Download
memory/5028-3-0x00000000754A0000-0x00000000754B1000-memory.dmp

Filesize
68KB

Download