bd88e8167365b27258a2b75475627f6f338c4911a3cb1d3b1150dd44bbd70aa3

Analysis

max time kernel
140s
max time network
6s
platform
windows7_x64
resource
win7v200430
submitted
24/06/2020, 15:08

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General

Target
gunzipped.exe
Size 763KB
Sample200624-36all8lnba
SHA256 bd88e8167365b27258a2b75475627f6f338c4911a3cb1d3b1150dd44bbd70aa3
MD5 3de18535ef3b91dc8428f5816c959c17
SHA1 226a5d8becfce061fccde38227aca82bbe6ceb50
SHA512 2b19eb87fb7f5a895ba6cc2cda35dbb0ce1bb5276bd2478dfba6f8990fd70bb00566d58bc126e2f06e8b733d7e22b1bb953ea4ba4e030b72603a3094196edd3d
MD5 SHA1 SHA512

Score

8^/10

spyware

Malware Config

Signatures

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
904	gunzipped.exe
1084	gunzipped.exe
1084	gunzipped.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 904 wrote to memory of 1084	904	gunzipped.exe	24
PID 904 wrote to memory of 1084	904	gunzipped.exe	24
PID 904 wrote to memory of 1084	904	gunzipped.exe	24
PID 904 wrote to memory of 1084	904	gunzipped.exe	24

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
904	gunzipped.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 904 set thread context of 1084	904	gunzipped.exe	24

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1084	gunzipped.exe

UPX packed file 3 IoCs

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

resource	yara_rule
behavioral1/memory/1084-0-0x0000000000400000-0x00000000004AD000-memory.dmp	upx
behavioral1/memory/1084-2-0x0000000000400000-0x00000000004AD000-memory.dmp	upx
behavioral1/memory/1084-3-0x0000000000400000-0x00000000004AD000-memory.dmp	upx

C:\Users\Admin\AppData\Local\Temp\gunzipped.exe
"C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetThreadContext
PID:904
- C:\Users\Admin\AppData\Local\Temp\gunzipped.exe
  "C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1084

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1084-0-0x0000000000400000-0x00000000004AD000-memory.dmp

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memory/1084-2-0x0000000000400000-0x00000000004AD000-memory.dmp

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memory/1084-3-0x0000000000400000-0x00000000004AD000-memory.dmp

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memory/1084-4-0x0000000000350000-0x00000000003A0000-memory.dmp

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memory/1084-5-0x0000000002042000-0x0000000002043000-memory.dmp

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memory/1084-6-0x0000000000220000-0x000000000026B000-memory.dmp

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