f99c79c93a6c5afa2a4965d93075ae48d0d9d90624c0e0a8fe438208cfd287d6

Analysis

max time kernel
146s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240319-en
resource tags

arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
submitted
29-03-2024 18:55

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General

Target

f99c79c93a6c5afa2a4965d93075ae48d0d9d90624c0e0a8fe438208cfd287d6.exe
Size

266KB
MD5

e3d98cb30bfc44cc8f64e9d388d4fae7
SHA1

b52ffa9e1849c2de40d9fa69df84c643270d91e6
SHA256

f99c79c93a6c5afa2a4965d93075ae48d0d9d90624c0e0a8fe438208cfd287d6
SHA512

ec87e1e1a7b5ffc231b86716412ec24fbbec55e67f3294ff3f30ca1a80c3cd31548d69a5ad6c30048f47e8c18330f870d352d0f1861cfe769102dff2091c4223
SSDEEP

6144:9XzKdNY49u8rVTJm4MzJTeB6IxACs2a101net:ea4A4Jm4MzU0IpLy01

Score

7^/10

upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Control Panel\International\Geo\Nation	f99c79c93a6c5afa2a4965d93075ae48d0d9d90624c0e0a8fe438208cfd287d6.exe

Executes dropped EXE 2 IoCs

pid	Process
4060	ITS SB App Switch.exe
404	ITS SB App Switch.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2424-0-0x0000000000910000-0x00000000009B0000-memory.dmp	upx
behavioral1/memory/2424-14-0x0000000000910000-0x00000000009B0000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2424	f99c79c93a6c5afa2a4965d93075ae48d0d9d90624c0e0a8fe438208cfd287d6.exe
2424	f99c79c93a6c5afa2a4965d93075ae48d0d9d90624c0e0a8fe438208cfd287d6.exe
2424	f99c79c93a6c5afa2a4965d93075ae48d0d9d90624c0e0a8fe438208cfd287d6.exe
2424	f99c79c93a6c5afa2a4965d93075ae48d0d9d90624c0e0a8fe438208cfd287d6.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2424 wrote to memory of 4060	2424	f99c79c93a6c5afa2a4965d93075ae48d0d9d90624c0e0a8fe438208cfd287d6.exe	97
PID 2424 wrote to memory of 4060	2424	f99c79c93a6c5afa2a4965d93075ae48d0d9d90624c0e0a8fe438208cfd287d6.exe	97
PID 2424 wrote to memory of 4060	2424	f99c79c93a6c5afa2a4965d93075ae48d0d9d90624c0e0a8fe438208cfd287d6.exe	97
PID 2424 wrote to memory of 404	2424	f99c79c93a6c5afa2a4965d93075ae48d0d9d90624c0e0a8fe438208cfd287d6.exe	98
PID 2424 wrote to memory of 404	2424	f99c79c93a6c5afa2a4965d93075ae48d0d9d90624c0e0a8fe438208cfd287d6.exe	98
PID 2424 wrote to memory of 404	2424	f99c79c93a6c5afa2a4965d93075ae48d0d9d90624c0e0a8fe438208cfd287d6.exe	98

C:\Users\Admin\AppData\Local\Temp\f99c79c93a6c5afa2a4965d93075ae48d0d9d90624c0e0a8fe438208cfd287d6.exe
"C:\Users\Admin\AppData\Local\Temp\f99c79c93a6c5afa2a4965d93075ae48d0d9d90624c0e0a8fe438208cfd287d6.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2424
- C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe
  "C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe"
  2⤵
  - Executes dropped EXE
  PID:4060
- C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe
  "C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe"
  2⤵
  - Executes dropped EXE
  PID:404

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=4044 --field-trial-handle=2276,i,5672504106535478802,17394903851940863593,262144 --variations-seed-version /prefetch:8
1⤵
PID:4252

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe

Filesize
87KB

MD5
368332fca74f48697d842c5f4698ae1d

SHA1
0275153a1e62bd0eca0b02168895517ed66aac56

SHA256
3a4a5b128c3a042010824fd33b719466b0d9320aa051ca3d5f1690124766ad59

SHA512
fd9f1d1a4337e00fef5e9ea10a7fdf553e98df2cf2fdf818b68689a89de3c1d324de389e0c9ef863fef08a3dff8150db173b2203e9e92efaea67865e8d2805b5

Download Submit
memory/2424-0-0x0000000000910000-0x00000000009B0000-memory.dmp

Filesize
640KB

Download
memory/2424-14-0x0000000000910000-0x00000000009B0000-memory.dmp

Filesize
640KB

Download