hxxp://aritmetika[.]com[.]co

Analysis

max time kernel
24s
max time network
24s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 20:25

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General

Target

http://aritmetika.com.co

Score

1^/10

Malware Config

Signatures

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	msedge.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3168	msedge.exe
3168	msedge.exe
2724	msedge.exe
2724	msedge.exe
3008	identity_helper.exe
3008	identity_helper.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs

pid	Process
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe
2724	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2724 wrote to memory of 3596	2724	msedge.exe	84
PID 2724 wrote to memory of 3596	2724	msedge.exe	84
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 1276	2724	msedge.exe	85
PID 2724 wrote to memory of 3168	2724	msedge.exe	86
PID 2724 wrote to memory of 3168	2724	msedge.exe	86
PID 2724 wrote to memory of 3216	2724	msedge.exe	87
PID 2724 wrote to memory of 3216	2724	msedge.exe	87
PID 2724 wrote to memory of 3216	2724	msedge.exe	87
PID 2724 wrote to memory of 3216	2724	msedge.exe	87
PID 2724 wrote to memory of 3216	2724	msedge.exe	87
PID 2724 wrote to memory of 3216	2724	msedge.exe	87
PID 2724 wrote to memory of 3216	2724	msedge.exe	87
PID 2724 wrote to memory of 3216	2724	msedge.exe	87
PID 2724 wrote to memory of 3216	2724	msedge.exe	87
PID 2724 wrote to memory of 3216	2724	msedge.exe	87
PID 2724 wrote to memory of 3216	2724	msedge.exe	87
PID 2724 wrote to memory of 3216	2724	msedge.exe	87
PID 2724 wrote to memory of 3216	2724	msedge.exe	87
PID 2724 wrote to memory of 3216	2724	msedge.exe	87
PID 2724 wrote to memory of 3216	2724	msedge.exe	87
PID 2724 wrote to memory of 3216	2724	msedge.exe	87
PID 2724 wrote to memory of 3216	2724	msedge.exe	87
PID 2724 wrote to memory of 3216	2724	msedge.exe	87
PID 2724 wrote to memory of 3216	2724	msedge.exe	87
PID 2724 wrote to memory of 3216	2724	msedge.exe	87

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://aritmetika.com.co
1⤵
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2724
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7fffffab46f8,0x7fffffab4708,0x7fffffab4718
  2⤵
  PID:3596
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2080,7370017565272562162,16730945551034798405,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2100 /prefetch:2
  2⤵
  PID:1276
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2080,7370017565272562162,16730945551034798405,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2312 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3168
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2080,7370017565272562162,16730945551034798405,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2612 /prefetch:8
  2⤵
  PID:3216
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,7370017565272562162,16730945551034798405,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3232 /prefetch:1
  2⤵
  PID:4776
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,7370017565272562162,16730945551034798405,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3240 /prefetch:1
  2⤵
  PID:2608
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,7370017565272562162,16730945551034798405,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4060 /prefetch:1
  2⤵
  PID:1896
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,7370017565272562162,16730945551034798405,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4948 /prefetch:1
  2⤵
  PID:4144
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,7370017565272562162,16730945551034798405,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4800 /prefetch:1
  2⤵
  PID:4692
- C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2080,7370017565272562162,16730945551034798405,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6204 /prefetch:8
  2⤵
  PID:4688
- C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2080,7370017565272562162,16730945551034798405,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6204 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3008
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,7370017565272562162,16730945551034798405,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5808 /prefetch:1
  2⤵
  PID:4856
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,7370017565272562162,16730945551034798405,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5816 /prefetch:1
  2⤵
  PID:1860

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4792

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4624

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

Filesize
152B

MD5
ce4c898f8fc7601e2fbc252fdadb5115

SHA1
01bf06badc5da353e539c7c07527d30dccc55a91

SHA256
bce2dfaa91f0d44e977e0f79c60e64954a7b9dc828b0e30fbaa67dbe82f750aa

SHA512
80fff4c722c8d3e69ec4f09510779b7e3518ae60725d2d36903e606a27ec1eaedbdbfac5b662bf2c19194c572ccf0125445f22a907b329ad256e6c00b9cf032c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

Filesize
152B

MD5
4158365912175436289496136e7912c2

SHA1
813d11f772b1cfe9ceac2bf37f4f741e5e8fbe59

SHA256
354de4b033ba6e4d85f94d91230cb8501f62e0a4e302cd4076c7e0ad73bedbd1

SHA512
74b4f7b24ad4ea395f3a4cd8dbfae54f112a7c87bce3d286ee5161f6b63d62dfa19bb0d96bb7ed1c6d925f5697a2580c25023d5052c6a09992e6fd9dd49ea82b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network Persistent State

Filesize
111B

MD5
285252a2f6327d41eab203dc2f402c67

SHA1
acedb7ba5fbc3ce914a8bf386a6f72ca7baa33c6

SHA256
5dfc321417fc31359f23320ea68014ebfd793c5bbed55f77dab4180bbd4a2026

SHA512
11ce7cb484fee66894e63c31db0d6b7ef66ad0327d4e7e2eb85f3bcc2e836a3a522c68d681e84542e471e54f765e091efe1ee4065641b0299b15613eb32dcc0d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

Filesize
5KB

MD5
f6bd2bb805d6b60f7b145c230f453843

SHA1
e188247d8822af3340c09f483af7f14dc1f1ff03

SHA256
5a441b6346fff66a2e5ae1ba2ba4b9043d1e1420d982bd700631b37d401089c0

SHA512
8f14ffbefa9c42a09109ca605ee1136945c3b277b63bb6f0f627925e2851e42cd8789d11cc73671bf072dd81381ae6756b0bea8a3932cec9944c31022f7cb4aa

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

Filesize
6KB

MD5
baaf49ddf88df129ea8b53a87fba9a38

SHA1
dbd9a67b82bd7429a3d14992a2a7f695863a0cc5

SHA256
1d6ee95d76001e536a7cb87b4af85b5f236cb7f267a009dc45971ea9ad824c37

SHA512
6a1f65bdb2ed26dd6e9825d869959db388e1fe449fa3854f38d16e4de187949d8282ae03a7e93db820974027c8cb35992ed9fa593635a5dae8e2ade2b9235cc5

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

Filesize
16B

MD5
46295cac801e5d4857d09837238a6394

SHA1
44e0fa1b517dbf802b18faf0785eeea6ac51594b

SHA256
0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443

SHA512
8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

Filesize
16B

MD5
206702161f94c5cd39fadd03f4014d98

SHA1
bd8bfc144fb5326d21bd1531523d9fb50e1b600a

SHA256
1005a525006f148c86efcbfb36c6eac091b311532448010f70f7de9a68007167

SHA512
0af09f26941b11991c750d1a2b525c39a8970900e98cba96fd1b55dbf93fee79e18b8aab258f48b4f7bda40d059629bc7770d84371235cdb1352a4f17f80e145

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

Filesize
11KB

MD5
3a6b05bd5e1d55a958835629c2a4864a

SHA1
aae42145a71efb8df9e7b8050c12393563ebd603

SHA256
2a5b56081ed567fcbe2b202e78c08b1fec0eedb7a45bed8970ac782b41d7cb0d

SHA512
7f122a39b707f8005d025aa8d72d98f3b0aef5833e4e74ccc27c0cd1eae7fa14b34ee4e872047ec923cb1c7d582dede9788980defff5fc1d1de688f546658b21

Download Submit