706344dd1c2917c444e71d3c617e6153207cd0a6787d48bfeb2fb12fc4e7a63e

Analysis

max time kernel
151s
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
05-03-2024 09:19

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General

Target

b459181a3ea1ad94c3d7c5b27e3a35be.pdf
Size

90KB
MD5

b459181a3ea1ad94c3d7c5b27e3a35be
SHA1

9f10e87a678c604c04cb0b98de9e7902ac247197
SHA256

706344dd1c2917c444e71d3c617e6153207cd0a6787d48bfeb2fb12fc4e7a63e
SHA512

74181e4880a4b54011ed583f61ee378ae5d687d26d5cb310dc8862999b8e186767263950077c10cfe9cae67cc1b77979b1cbbccac257aa161325bbfd6361dfe8
SSDEEP

1536:p/mCANPMs6yBdjr4G0ZGQgsGVws+T6mla7BGjPkWAXwCd6RQW6pOu2V7yZcfe7nC:FmCANPg+N4GZQgsGVyY7BGjJe85u2MZ0

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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4944	AcroRd32.exe
4944	AcroRd32.exe
4944	AcroRd32.exe
4944	AcroRd32.exe
4944	AcroRd32.exe
4944	AcroRd32.exe
4944	AcroRd32.exe
4944	AcroRd32.exe
4944	AcroRd32.exe
4944	AcroRd32.exe
4944	AcroRd32.exe
4944	AcroRd32.exe
4944	AcroRd32.exe
4944	AcroRd32.exe
4944	AcroRd32.exe
4944	AcroRd32.exe
4944	AcroRd32.exe
4944	AcroRd32.exe
4944	AcroRd32.exe
4944	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4944	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4944	AcroRd32.exe
4944	AcroRd32.exe
4944	AcroRd32.exe
4944	AcroRd32.exe
4944	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4944 wrote to memory of 1552	4944	AcroRd32.exe	100
PID 4944 wrote to memory of 1552	4944	AcroRd32.exe	100
PID 4944 wrote to memory of 1552	4944	AcroRd32.exe	100
PID 4944 wrote to memory of 1900	4944	AcroRd32.exe	103
PID 4944 wrote to memory of 1900	4944	AcroRd32.exe	103
PID 4944 wrote to memory of 1900	4944	AcroRd32.exe	103
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1692	1552	RdrCEF.exe	104
PID 1552 wrote to memory of 1608	1552	RdrCEF.exe	105
PID 1552 wrote to memory of 1608	1552	RdrCEF.exe	105
PID 1552 wrote to memory of 1608	1552	RdrCEF.exe	105
PID 1552 wrote to memory of 1608	1552	RdrCEF.exe	105
PID 1552 wrote to memory of 1608	1552	RdrCEF.exe	105
PID 1552 wrote to memory of 1608	1552	RdrCEF.exe	105
PID 1552 wrote to memory of 1608	1552	RdrCEF.exe	105
PID 1552 wrote to memory of 1608	1552	RdrCEF.exe	105
PID 1552 wrote to memory of 1608	1552	RdrCEF.exe	105
PID 1552 wrote to memory of 1608	1552	RdrCEF.exe	105
PID 1552 wrote to memory of 1608	1552	RdrCEF.exe	105
PID 1552 wrote to memory of 1608	1552	RdrCEF.exe	105
PID 1552 wrote to memory of 1608	1552	RdrCEF.exe	105
PID 1552 wrote to memory of 1608	1552	RdrCEF.exe	105
PID 1552 wrote to memory of 1608	1552	RdrCEF.exe	105
PID 1552 wrote to memory of 1608	1552	RdrCEF.exe	105
PID 1552 wrote to memory of 1608	1552	RdrCEF.exe	105

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\b459181a3ea1ad94c3d7c5b27e3a35be.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:4944
- 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:1552
- - 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=379FF1A54A75D6E1ABE29161F629FA7B --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1692
- - 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=D4C9BE4B09E9842E749B86677776C497 --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=4 --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=D4C9BE4B09E9842E749B86677776C497 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1608
- - 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=ECDE656D05383297FAA7BB01CCB0242A --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=4 --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=ECDE656D05383297FAA7BB01CCB0242A --renderer-client-id=4 --mojo-platform-channel-handle=2168 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2396
- - 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=E1C3731F1C05345C1BC074EF328CBE59 --mojo-platform-channel-handle=2564 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2496
- - 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=3CE3D6FAB4BCD6809888C42C76BAA98C --mojo-platform-channel-handle=2108 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3120
- - 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=E745C1C92685A23AD877B5F38E63A99B --mojo-platform-channel-handle=1888 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3620
- 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⤵
  PID:1900

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:532

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 --mojo-platform-channel-handle=4240 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:8
1⤵
PID:320

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

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Downloads

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

Filesize
64KB

MD5
dc3356146f5e6f8e0760a107f9f226cf

SHA1
93f066f09e25c1773832ca275bc13a9905be6a57

SHA256
4ae0ab431cc1af7d13a37988b0dbdc3cdef9710084c542a182ca5954bb7dd3d9

SHA512
9b68b7c0ad414dd18b951a3936b95ee43300812f96147a7595469b6da910881fc9655ddfab43545abb1959cd2c51e70e9b705eb81a8eb748d0822f0a27a88fb7

Download Submit
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