f82da13fc493379bd491b7944dd2e7c4661da00c9dbe7436fad0bc3c5b8aba8f

Analysis

max time kernel
212s
max time network
235s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2023 16:37

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General

Target

f4fb38b0c6bee87fa530c1f23b464c43.pdf
Size

94KB
MD5

f4fb38b0c6bee87fa530c1f23b464c43
SHA1

252d964e7d5e52d9f3ea3c81c093aec670ca986c
SHA256

f82da13fc493379bd491b7944dd2e7c4661da00c9dbe7436fad0bc3c5b8aba8f
SHA512

3baf1f84c5b68c9778e4f4859490fd1d0ce7272416fb28d047b7f4fabe68b89384d15e34a4a2227f102048823cc29a474f1864b295e2ed21af5282cd040b36ef
SSDEEP

1536:Eg+QLGvqSaQw246hKeVQt5//AXfUPo9axAbu/003eWcfMPbbh1RTTVWwl1ckJ:GQ6vqSRwy4jUcPoIxADWtPvxTh1D

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

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1952	AcroRd32.exe
1952	AcroRd32.exe
1952	AcroRd32.exe
1952	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1952	AcroRd32.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1952	AcroRd32.exe
1952	AcroRd32.exe
1952	AcroRd32.exe
1952	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1952 wrote to memory of 3960	1952	AcroRd32.exe	99
PID 1952 wrote to memory of 3960	1952	AcroRd32.exe	99
PID 1952 wrote to memory of 3960	1952	AcroRd32.exe	99
PID 1952 wrote to memory of 3784	1952	AcroRd32.exe	100
PID 1952 wrote to memory of 3784	1952	AcroRd32.exe	100
PID 1952 wrote to memory of 3784	1952	AcroRd32.exe	100
PID 1952 wrote to memory of 2836	1952	AcroRd32.exe	101
PID 1952 wrote to memory of 2836	1952	AcroRd32.exe	101
PID 1952 wrote to memory of 2836	1952	AcroRd32.exe	101
PID 1952 wrote to memory of 2604	1952	AcroRd32.exe	103
PID 1952 wrote to memory of 2604	1952	AcroRd32.exe	103
PID 1952 wrote to memory of 2604	1952	AcroRd32.exe	103
PID 1952 wrote to memory of 4456	1952	AcroRd32.exe	105
PID 1952 wrote to memory of 4456	1952	AcroRd32.exe	105
PID 1952 wrote to memory of 4456	1952	AcroRd32.exe	105
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 3288	4456	RdrCEF.exe	106
PID 4456 wrote to memory of 1320	4456	RdrCEF.exe	107
PID 4456 wrote to memory of 1320	4456	RdrCEF.exe	107
PID 4456 wrote to memory of 1320	4456	RdrCEF.exe	107
PID 4456 wrote to memory of 1320	4456	RdrCEF.exe	107
PID 4456 wrote to memory of 1320	4456	RdrCEF.exe	107
PID 4456 wrote to memory of 1320	4456	RdrCEF.exe	107
PID 4456 wrote to memory of 1320	4456	RdrCEF.exe	107
PID 4456 wrote to memory of 1320	4456	RdrCEF.exe	107

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\f4fb38b0c6bee87fa530c1f23b464c43.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:1952
- 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:3960
- 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:3784
- 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:2836
- 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:2604
- 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:4456
- - 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=4286F4DF32FB41D4206F503254774222 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3288
- - 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=D679AD67B7A8574D9B282D366A27F2B8 --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=D679AD67B7A8574D9B282D366A27F2B8 --renderer-client-id=2 --mojo-platform-channel-handle=1696 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1320

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
36KB

MD5
b30d3becc8731792523d599d949e63f5

SHA1
19350257e42d7aee17fb3bf139a9d3adb330fad4

SHA256
b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3

SHA512
523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e

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