76694c444c9bedfc4dae77dbfde8ec14040292cfa37c64103339a9f4f8545ac4

Analysis

max time kernel
141s
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
12/03/2024, 13:22

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General

Target

c37921648a166dc7fe7cbcc187b88de4.exe
Size

252KB
MD5

c37921648a166dc7fe7cbcc187b88de4
SHA1

880afd471d198e12664d6942437c7d4ef87b15d4
SHA256

76694c444c9bedfc4dae77dbfde8ec14040292cfa37c64103339a9f4f8545ac4
SHA512

ca5de4ccb4717fb4017b8bfab0d1a8955a4b4ade73de9ff8a677afd8563be2b9d56dd5112f5c3cff50a46eac3382f7f7dbc4c420f1bbcb5521a2f1e02ba3b670
SSDEEP

6144:VlzknoBcRzrWsJywvP6bQ7yMP+DE827OaFSEpA/:nAnZRzJT6b7MP+Dd2iafpA/

Score

4^/10

Malware Config

Signatures

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\inf\ram32xp.dll	c37921648a166dc7fe7cbcc187b88de4.exe
File created	C:\Windows\inf\ram65xp.dll	c37921648a166dc7fe7cbcc187b88de4.exe

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-1-5-21-3270530367-132075249-2153716227-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	c37921648a166dc7fe7cbcc187b88de4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	c37921648a166dc7fe7cbcc187b88de4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	c37921648a166dc7fe7cbcc187b88de4.exe
Key created	\REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000_Classes\Local Settings	explorer.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
396	AcroRd32.exe
396	AcroRd32.exe
396	AcroRd32.exe
396	AcroRd32.exe
396	AcroRd32.exe
396	AcroRd32.exe
396	AcroRd32.exe
396	AcroRd32.exe
396	AcroRd32.exe
396	AcroRd32.exe
396	AcroRd32.exe
396	AcroRd32.exe
396	AcroRd32.exe
396	AcroRd32.exe
396	AcroRd32.exe
396	AcroRd32.exe
396	AcroRd32.exe
396	AcroRd32.exe
396	AcroRd32.exe
396	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
396	AcroRd32.exe
396	AcroRd32.exe
396	AcroRd32.exe
396	AcroRd32.exe
396	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 864 wrote to memory of 3940	864	c37921648a166dc7fe7cbcc187b88de4.exe	89
PID 864 wrote to memory of 3940	864	c37921648a166dc7fe7cbcc187b88de4.exe	89
PID 864 wrote to memory of 3940	864	c37921648a166dc7fe7cbcc187b88de4.exe	89
PID 4864 wrote to memory of 396	4864	explorer.exe	92
PID 4864 wrote to memory of 396	4864	explorer.exe	92
PID 4864 wrote to memory of 396	4864	explorer.exe	92
PID 396 wrote to memory of 2336	396	AcroRd32.exe	98
PID 396 wrote to memory of 2336	396	AcroRd32.exe	98
PID 396 wrote to memory of 2336	396	AcroRd32.exe	98
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 3692	2336	RdrCEF.exe	99
PID 2336 wrote to memory of 2552	2336	RdrCEF.exe	100
PID 2336 wrote to memory of 2552	2336	RdrCEF.exe	100
PID 2336 wrote to memory of 2552	2336	RdrCEF.exe	100
PID 2336 wrote to memory of 2552	2336	RdrCEF.exe	100
PID 2336 wrote to memory of 2552	2336	RdrCEF.exe	100
PID 2336 wrote to memory of 2552	2336	RdrCEF.exe	100
PID 2336 wrote to memory of 2552	2336	RdrCEF.exe	100
PID 2336 wrote to memory of 2552	2336	RdrCEF.exe	100
PID 2336 wrote to memory of 2552	2336	RdrCEF.exe	100
PID 2336 wrote to memory of 2552	2336	RdrCEF.exe	100
PID 2336 wrote to memory of 2552	2336	RdrCEF.exe	100
PID 2336 wrote to memory of 2552	2336	RdrCEF.exe	100
PID 2336 wrote to memory of 2552	2336	RdrCEF.exe	100
PID 2336 wrote to memory of 2552	2336	RdrCEF.exe	100

C:\Users\Admin\AppData\Local\Temp\c37921648a166dc7fe7cbcc187b88de4.exe
"C:\Users\Admin\AppData\Local\Temp\c37921648a166dc7fe7cbcc187b88de4.exe"
1⤵
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:864
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe "c:\FINAL_TBF2.pdf"
  2⤵
  PID:3940

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4864
- C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe
  "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" "C:\FINAL_TBF2.pdf"
  2⤵
  - Checks processor information in registry
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:396
- - 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
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2336
  - - 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=C2DB4F413A3239DE28852D023A85B9C8 --mojo-platform-channel-handle=1724 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
      4⤵
      PID:3692
  - - 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=F0CF42CA24A0F90721325C4747CCB3A3 --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=F0CF42CA24A0F90721325C4747CCB3A3 --renderer-client-id=2 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job /prefetch:1
      4⤵
      PID:2552
  - - 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=1043D3F43A697C8B9054E12D3EA223CB --mojo-platform-channel-handle=2140 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
      4⤵
      PID:1120
  - - 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=9B0D85A8C6371D64948533A024A48646 --mojo-platform-channel-handle=2324 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
      4⤵
      PID:3912
  - - 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=588E2490CCD3429E6635645B6001CDA3 --mojo-platform-channel-handle=2424 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
      4⤵
      PID:3292

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
1aa95c711fdaa4a74a8d0391064c4288

SHA1
837f6dacde30a8e31bdd5ab3c055e39647d9068d

SHA256
e04516dfc5db11e8e964604024a7205b1d42a87bcf18ba6de7d092033861b10e

SHA512
b38257ec064099f77f6bba84ea1bc62ec21ea492190763467242462d287fb0ff8a29344333bbad5a622a57ce0df5119f408a69d73d2ef71e902a6bc458bc4d27

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
memory/864-12-0x0000000000B20000-0x0000000000B21000-memory.dmp

Filesize
4KB

Download
memory/864-7-0x0000000002550000-0x0000000002551000-memory.dmp

Filesize
4KB

Download
memory/864-11-0x0000000000B30000-0x0000000000B31000-memory.dmp

Filesize
4KB

Download
memory/864-10-0x0000000000B40000-0x0000000000B41000-memory.dmp

Filesize
4KB

Download
memory/864-15-0x0000000002400000-0x0000000002401000-memory.dmp

Filesize
4KB

Download
memory/864-14-0x0000000002450000-0x0000000002451000-memory.dmp

Filesize
4KB

Download
memory/864-13-0x0000000002460000-0x0000000002461000-memory.dmp

Filesize
4KB

Download
memory/864-0-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/864-9-0x0000000002510000-0x0000000002511000-memory.dmp

Filesize
4KB

Download
memory/864-8-0x0000000002520000-0x0000000002521000-memory.dmp

Filesize
4KB

Download
memory/864-6-0x00000000024F0000-0x00000000024F1000-memory.dmp

Filesize
4KB

Download
memory/864-5-0x0000000002500000-0x0000000002501000-memory.dmp

Filesize
4KB

Download
memory/864-16-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/864-17-0x0000000000A60000-0x0000000000A90000-memory.dmp

Filesize
192KB

Download
memory/864-4-0x0000000000A40000-0x0000000000A47000-memory.dmp

Filesize
28KB

Download
memory/864-2-0x0000000000A50000-0x0000000000A52000-memory.dmp

Filesize
8KB

Download
memory/864-1-0x0000000000A60000-0x0000000000A90000-memory.dmp

Filesize
192KB

Download