3f91550c1c6253da76c8167540a793d32351586197a361d3c4590a19d0bc9b0d

Analysis

max time kernel
140s
max time network
131s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
18/04/2023, 09:53

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

UM-March.6(2634).pdf
Size

66KB
MD5

482f1fc089c81d8c03498c39dd01792c
SHA1

d487303a46c4aac5ae531508eb578c1799222241
SHA256

3f91550c1c6253da76c8167540a793d32351586197a361d3c4590a19d0bc9b0d
SHA512

d4ba5d596f90b5eb3372e1c71dc3af2db07a867e1e552b9bce77894f96800fbe3ba2770582c4e1f37fadef3085e590eb96f3df033add36cdf6a645fcfa4664d8
SSDEEP

1536:n/yZKHMYbooMhtBxoMZBSp4Z4oR9PCsT10/3pN:n/yMs2ooMhtRZADoDp6/3pN

Score

1^/10

Malware Config

Signatures

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AcroRd32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AcroRd32.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3372	AcroRd32.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe
3372	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3372 wrote to memory of 1904	3372	AcroRd32.exe	88
PID 3372 wrote to memory of 1904	3372	AcroRd32.exe	88
PID 3372 wrote to memory of 1904	3372	AcroRd32.exe	88
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 4728	1904	RdrCEF.exe	89
PID 1904 wrote to memory of 3028	1904	RdrCEF.exe	90
PID 1904 wrote to memory of 3028	1904	RdrCEF.exe	90
PID 1904 wrote to memory of 3028	1904	RdrCEF.exe	90
PID 1904 wrote to memory of 3028	1904	RdrCEF.exe	90
PID 1904 wrote to memory of 3028	1904	RdrCEF.exe	90
PID 1904 wrote to memory of 3028	1904	RdrCEF.exe	90
PID 1904 wrote to memory of 3028	1904	RdrCEF.exe	90
PID 1904 wrote to memory of 3028	1904	RdrCEF.exe	90
PID 1904 wrote to memory of 3028	1904	RdrCEF.exe	90
PID 1904 wrote to memory of 3028	1904	RdrCEF.exe	90
PID 1904 wrote to memory of 3028	1904	RdrCEF.exe	90
PID 1904 wrote to memory of 3028	1904	RdrCEF.exe	90
PID 1904 wrote to memory of 3028	1904	RdrCEF.exe	90
PID 1904 wrote to memory of 3028	1904	RdrCEF.exe	90
PID 1904 wrote to memory of 3028	1904	RdrCEF.exe	90
PID 1904 wrote to memory of 3028	1904	RdrCEF.exe	90
PID 1904 wrote to memory of 3028	1904	RdrCEF.exe	90
PID 1904 wrote to memory of 3028	1904	RdrCEF.exe	90
PID 1904 wrote to memory of 3028	1904	RdrCEF.exe	90
PID 1904 wrote to memory of 3028	1904	RdrCEF.exe	90

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\UM-March.6(2634).pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3372
- C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
  "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=16514043
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1904
- - C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=F0313A1B7FF61C5A5F84907037510908 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4728
- - C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=AE61753B51E021D072551C660CA87EDA --lang=en-US --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --enable-pinch --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=AE61753B51E021D072551C660CA87EDA --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3028
- - C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=BCB481AA016E945B50D55A84BEF4B8D6 --lang=en-US --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --enable-pinch --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=BCB481AA016E945B50D55A84BEF4B8D6 --renderer-client-id=4 --mojo-platform-channel-handle=2176 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3436
- - C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=FF221CD4CE6A52768C90CA65CD108A0E --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2748
- - C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=7BFF9896E56596EFFD6E32E65F164A1A --mojo-platform-channel-handle=2552 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3016
- - C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=76E074892A98ABEBD27E757FDE763FB6 --mojo-platform-channel-handle=2740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1312

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1880

C:\Windows\system32\notepad.exe
"C:\Windows\system32\notepad.exe"
1⤵
PID:1592

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
36KB

MD5
b30d3becc8731792523d599d949e63f5

SHA1
19350257e42d7aee17fb3bf139a9d3adb330fad4

SHA256
b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3

SHA512
523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
64KB

MD5
ebbe4cf842278232e58c86b9df607cc7

SHA1
bdf85383f7d164a994c11988fd5fe62fa7d1f557

SHA256
6aa302cb71cb58c418131f8b9c6e7faa92c269cf4373c49db25651685aec766d

SHA512
f869b844dfb6100f37362d13ebdc8a2ba8d44ad4c9181ea0735d44ed3b58b357b0f6d0907c8beec64913db7d0752f04ba2ed00af9d4ccbbecdbe80904f9036de

Download Submit
memory/3372-281-0x000000000AD00000-0x000000000AE4D000-memory.dmp

Filesize
1.3MB

Download
memory/3372-288-0x000000000AD00000-0x000000000AE4D000-memory.dmp

Filesize
1.3MB

Download
memory/3372-295-0x000000000AD00000-0x000000000AE4D000-memory.dmp

Filesize
1.3MB

Download