smokeloader | 7bca3edc5e670585a268f05a34c4532d847e945591465db2352d5d7766951cd5

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
05/11/2024, 07:06

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General

Target

7bca3edc5e670585a268f05a34c4532d847e945591465db2352d5d7766951cd5.exe
Size

211KB
MD5

9e5995fad8dd7a6c735d5307b24a700a
SHA1

3e8a964b96f733c7f00460e460b58cccbc50bdb8
SHA256

7bca3edc5e670585a268f05a34c4532d847e945591465db2352d5d7766951cd5
SHA512

5fbdb7471291fbc4a2116e87ba9731ae3e8726e947cfca73c72118c89e7ec8ac5c8d3f9c67fc388fe75eb029249000a72a5803a9def97e0927e881d012b2c4b2
SSDEEP

3072:aRoSdUCN54sEy4xU24hZJcYdTXEfkv2ARgYzbHOAg0FujDKUiqQWMIm3veP/CTPK:aRoAl5dE3xURTTEw+AOS6AeXC

Score

10^/10

smokeloader backdoor discovery trojan

Malware Config

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Smokeloader family
smokeloader

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1780 set thread context of 2208	1780	7bca3edc5e670585a268f05a34c4532d847e945591465db2352d5d7766951cd5.exe	31

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1744	1780	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 1 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	7bca3edc5e670585a268f05a34c4532d847e945591465db2352d5d7766951cd5.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1780 wrote to memory of 2208	1780	7bca3edc5e670585a268f05a34c4532d847e945591465db2352d5d7766951cd5.exe	31
PID 1780 wrote to memory of 2208	1780	7bca3edc5e670585a268f05a34c4532d847e945591465db2352d5d7766951cd5.exe	31
PID 1780 wrote to memory of 2208	1780	7bca3edc5e670585a268f05a34c4532d847e945591465db2352d5d7766951cd5.exe	31
PID 1780 wrote to memory of 2208	1780	7bca3edc5e670585a268f05a34c4532d847e945591465db2352d5d7766951cd5.exe	31
PID 1780 wrote to memory of 2208	1780	7bca3edc5e670585a268f05a34c4532d847e945591465db2352d5d7766951cd5.exe	31
PID 1780 wrote to memory of 2208	1780	7bca3edc5e670585a268f05a34c4532d847e945591465db2352d5d7766951cd5.exe	31
PID 1780 wrote to memory of 2208	1780	7bca3edc5e670585a268f05a34c4532d847e945591465db2352d5d7766951cd5.exe	31
PID 1780 wrote to memory of 2208	1780	7bca3edc5e670585a268f05a34c4532d847e945591465db2352d5d7766951cd5.exe	31
PID 1780 wrote to memory of 2208	1780	7bca3edc5e670585a268f05a34c4532d847e945591465db2352d5d7766951cd5.exe	31
PID 1780 wrote to memory of 1744	1780	7bca3edc5e670585a268f05a34c4532d847e945591465db2352d5d7766951cd5.exe	32
PID 1780 wrote to memory of 1744	1780	7bca3edc5e670585a268f05a34c4532d847e945591465db2352d5d7766951cd5.exe	32
PID 1780 wrote to memory of 1744	1780	7bca3edc5e670585a268f05a34c4532d847e945591465db2352d5d7766951cd5.exe	32
PID 1780 wrote to memory of 1744	1780	7bca3edc5e670585a268f05a34c4532d847e945591465db2352d5d7766951cd5.exe	32

C:\Users\Admin\AppData\Local\Temp\7bca3edc5e670585a268f05a34c4532d847e945591465db2352d5d7766951cd5.exe
"C:\Users\Admin\AppData\Local\Temp\7bca3edc5e670585a268f05a34c4532d847e945591465db2352d5d7766951cd5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1780
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:2208
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1780 -s 88
  2⤵
  - Program crash
  PID:1744

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

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Downloads

memory/1780-0-0x0000000001061000-0x0000000001063000-memory.dmp

Filesize
8KB

Download
memory/2208-1-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2208-4-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2208-2-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download