1e703c136921e493a028c7305f4e89497fcab8c8f75b7444df5dc14cbb0c66e5

Analysis

max time kernel
120s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23-08-2024 03:50

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General

Target

33fc6619b5e53d32d6a5900d1299ff10N.exe
Size

169KB
MD5

33fc6619b5e53d32d6a5900d1299ff10
SHA1

1a352c154f676c233508224799f669218c004df6
SHA256

1e703c136921e493a028c7305f4e89497fcab8c8f75b7444df5dc14cbb0c66e5
SHA512

797253c1fabc159b75c235409d847c4470b971dfa9b76a0af30384414defa549f55aa30fc8a9d27454773e61849cb782b6115a838d990eff712148f29036cc7c
SSDEEP

3072:ao/lri4GAA9qHWgIlYAp87Vjdtyb3Klg933oU0b7+OGEM43vkseO+w+p:N8d4Wga8XMb6lgOraOGE53J+R

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4204	winvnc.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4116-0-0x0000000000400000-0x000000000041F000-memory.dmp	upx
behavioral2/memory/4116-25-0x0000000000400000-0x000000000041F000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	33fc6619b5e53d32d6a5900d1299ff10N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winvnc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4116 wrote to memory of 4204	4116	33fc6619b5e53d32d6a5900d1299ff10N.exe	91
PID 4116 wrote to memory of 4204	4116	33fc6619b5e53d32d6a5900d1299ff10N.exe	91
PID 4116 wrote to memory of 4204	4116	33fc6619b5e53d32d6a5900d1299ff10N.exe	91

C:\Users\Admin\AppData\Local\Temp\33fc6619b5e53d32d6a5900d1299ff10N.exe
"C:\Users\Admin\AppData\Local\Temp\33fc6619b5e53d32d6a5900d1299ff10N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4116
- C:\Users\Admin\AppData\Local\Temp\7zS529F.tmp\winvnc.exe
  .\winvnc.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4204

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 --field-trial-handle=4460,i,4174666705242427184,7333705955694532165,262144 --variations-seed-version --mojo-platform-channel-handle=4092 /prefetch:8
1⤵
PID:4468

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\7zS529F.tmp\background.bmp

Filesize
1KB

MD5
6ce6e5fcf1a56b80f4ffa6f685d4329d

SHA1
91780868c241e83754003855407805c0cda20254

SHA256
6fcc92e281d25569d300297ef79a5796bc5e0c226aa35624dd6a9f38b8413402

SHA512
7af21c8840f56c5ded22161504dd3d6c282ad83a0fb1f711fccfc7d87676de3036120e60e2c0e57fb998a0dcfe512950d3f16e0bdcb493d37a681f31b8cb399f

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS529F.tmp\helpdesk.txt

Filesize
916B

MD5
bd1761e8af5362c5ce7835ae94f5881a

SHA1
09adefacbd7d83de0204e5b9e44c2e3c05ef72ba

SHA256
5c8494534e239d844a4610bb446d3d3766f48ff355e3c7151dc08127db61d3b4

SHA512
05dbf353475f1560f5bd9017ce6de67f7f84282c5ffbb77cde757694e6cd9aaab6e556c6d6248b8adf41f0237d8e71e1caa68d14a5961dd2ebce02bfa753a72e

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS529F.tmp\logo.bmp

Filesize
5KB

MD5
7e0af9c16a2e4d3248ae850c397f07bd

SHA1
d5164b9a8a9007a18959824ffb8d4630e116a330

SHA256
0f838820154e701b9c9e289042e531ec2ce94d2dffb2c4a62d498f891c14bf9f

SHA512
62be5263f1d1e63abc8a82b75cd48f8558e3e025d10c90ee0aeef3db99fb17f97dba1011b28172dbc79c616f2c67d6667648ce759a93732dd4b5e9a7f1ca7e80

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS529F.tmp\winvnc.exe

Filesize
244KB

MD5
1cc077ecea12e9b484112d897da74a3b

SHA1
7fef071f41ddd1895b2723f9a526f53b6cd681c7

SHA256
db904b423b5b4b0a15a8c39851449a7f2a8271f318374ce2d6618cfab07b096f

SHA512
6cfc612f34170fc409969fff8f2ad3352b71c9d06c389276d0d7f01fcd3e4684c6016c7860fed6d020ad9713aaf86a9076719189047b8cf3e0d0d054718c23e4

Download Submit
memory/4116-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4116-25-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download