b938cc27a7964c045d6a614d174ae5b5a48448956a9ca495f02236c9101ce670

Analysis

max time kernel
146s
max time network
132s
platform
ubuntu-24.04_amd64
resource
ubuntu2404-amd64-20240523-en
resource tags

arch:amd64arch:i386image:ubuntu2404-amd64-20240523-enkernel:6.8.0-31-genericlocale:en-usos:ubuntu-24.04-amd64system
submitted
21-11-2024 12:22

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General

Target

CHINA-APT-Trojan/usr/lib64/gdm/.gdm/dbus
Size

190KB
MD5

2251bc7910fe46fd0baf8bc05599bdcf
SHA1

0fef89711da11c550d3914debc0e663f5d2fb86c
SHA256

cff20753e36a4c942dc4dab5a91fd621a42330e17a89185a5b7262280bcd9263
SHA512

b5436c9f330cf32aeda31bc80ad375d4a1500c2a37f7317e70bd533fe4e6bae209da63f7ef623e0b05d6b4a03af54e93371afb3538754b9b195311496faa226c
SSDEEP

3072:sCktP9yEwFeIY0kRyxAuSnjL1Jo1q0+DNRJtlxaERyFzKr1Z70oh:sRPIEANY1RDXe8DNlYs

Score

6^/10

antivm discovery evasion execution persistence

Malware Config

Signatures

Reads list of loaded kernel modules 1 TTPs 1 IoCs

Reads the list of currently loaded kernel modules, possibly to detect virtual environments.

evasion

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
File opened for reading	/proc/modules	lsmod

Changes its process name 1 IoCs

description	ioc	pid	Process
Changes the process name, possibly in an attempt to hide itself	[scsi_eh_7]	2437	dbus

Checks CPU configuration 1 TTPs 1 IoCs

Checks CPU information which indicate if the system is a virtual machine.

antivm

System Checks

T1497.001

description	ioc	Process
File opened for reading	/proc/cpuinfo	cat

Creates .desktop file 2 TTPs 1 IoCs

Linux desktops like GNOME require .desktop files to register applications. Sometimes abused by malware for persistence.

persistence execution

User Execution

T1204

Malicious File

T1204.002

description	ioc	Process
File opened for modification	/root/.config/autostart/gnome-control.desktop	dbus

Enumerates kernel/hardware configuration 1 TTPs 64 IoCs

Reads contents of /sys virtual filesystem to enumerate system information.

discovery

System Information Discovery

T1082

description	ioc	Process
File opened for reading	/sys/module/nfnetlink/holders	lsmod
File opened for reading	/sys/module/parport_pc	lsmod
File opened for reading	/sys/module/polyval_clmulni/refcnt	lsmod
File opened for reading	/sys/module/ghash_clmulni_intel/coresize	lsmod
File opened for reading	/sys/module/aesni_intel/coresize	lsmod
File opened for reading	/sys/module/compression	lsmod
File opened for reading	/sys/module/dm_multipath/holders	lsmod
File opened for reading	/sys/module/ppdev/holders	lsmod
File opened for reading	/sys/module/hid_generic	lsmod
File opened for reading	/sys/module/polyval_clmulni	lsmod
File opened for reading	/sys/module/mac_hid	lsmod
File opened for reading	/sys/module/hid_generic/coresize	lsmod
File opened for reading	/sys/module/crct10dif_pclmul/coresize	lsmod
File opened for reading	/sys/module/btrfs/holders	lsmod
File opened for reading	/sys/module/libcrc32c/holders	lsmod
File opened for reading	/sys/module/hid_generic/refcnt	lsmod
File opened for reading	/sys/module/pata_acpi/holders	lsmod
File opened for reading	/sys/module/aesni_intel/holders	lsmod
File opened for reading	/sys/module/btrfs/refcnt	lsmod
File opened for reading	/sys/module/async_tx/holders	lsmod
File opened for reading	/sys/module/raid1	lsmod
File opened for reading	/sys/module/crct10dif_pclmul	lsmod
File opened for reading	/sys/module/serio_raw/refcnt	lsmod
File opened for reading	/sys/module/joydev/refcnt	lsmod
File opened for reading	/sys/module/stahp/holders	lsmod
File opened for reading	/sys/module/x_tables/holders	lsmod
File opened for reading	/sys/module/btrfs	lsmod
File opened for reading	/sys/module/libcrc32c/coresize	lsmod
File opened for reading	/sys/module/ghash_clmulni_intel	lsmod
File opened for reading	/sys/module/virtio_dma_buf	lsmod
File opened for reading	/sys/module/floppy	lsmod
File opened for reading	/sys/module/floppy/coresize	lsmod
File opened for reading	/sys/module/ip_tables/coresize	lsmod
File opened for reading	/sys/module/crypto_simd/refcnt	lsmod
File opened for reading	/sys/module/dmi_sysfs/refcnt	lsmod
File opened for reading	/sys/module/ip_tables/holders	lsmod
File opened for reading	/sys/module/blake2b_generic	lsmod
File opened for reading	/sys/module/sha1_ssse3/refcnt	lsmod
File opened for reading	/sys/module/8139cp/holders	lsmod
File opened for reading	/sys/module/aesni_intel/refcnt	lsmod
File opened for reading	/sys/module/cfg80211/refcnt	lsmod
File opened for reading	/sys/module/cryptd/refcnt	lsmod
File opened for reading	/sys/module/floppy/holders	lsmod
File opened for reading	/sys/module/binfmt_misc/refcnt	lsmod
File opened for reading	/sys/module/input_leds	lsmod
File opened for reading	/sys/module/blake2b_generic/refcnt	lsmod
File opened for reading	/sys/module/raid6_pq/coresize	lsmod
File opened for reading	/sys/module/raid1/holders	lsmod
File opened for reading	/sys/module/hid	lsmod
File opened for reading	/sys/module/polyval_generic/refcnt	lsmod
File opened for reading	/sys/module/usbdev/initstate	rmmod
File opened for reading	/sys/module/crypto_simd/holders	lsmod
File opened for reading	/sys/module/virtio_gpu	lsmod
File opened for reading	/sys/module/cfg80211	lsmod
File opened for reading	/sys/module/dm_multipath/coresize	lsmod
File opened for reading	/sys/module/8139too/holders	lsmod
File opened for reading	/sys/module/sha1_ssse3	lsmod
File opened for reading	/sys/module/intel_rapl_msr	lsmod
File opened for reading	/sys/module/mac_hid/refcnt	lsmod
File opened for reading	/sys/module/usbhid/refcnt	lsmod
File opened for reading	/sys/module/cryptd/holders	lsmod
File opened for reading	/sys/module/binfmt_misc/coresize	lsmod
File opened for reading	/sys/module/8139too	lsmod
File opened for reading	/sys/module/async_xor/holders	lsmod

Reads runtime system information 8 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/self/maps	grep
File opened for reading	/proc/self/maps	awk
File opened for reading	/proc/cmdline	rmmod
File opened for reading	/proc/self/maps	grep
File opened for reading	/proc/cmdline	lsmod
File opened for reading	/proc/self/maps	grep
File opened for reading	/proc/self/mountinfo	df
File opened for reading	/proc/self/maps	grep

Writes file to tmp directory 1 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/CHINA-APT-Trojan/usr/lib64/gdm/.gdm/pid	dbus

/tmp/CHINA-APT-Trojan/usr/lib64/gdm/.gdm/dbus
/tmp/CHINA-APT-Trojan/usr/lib64/gdm/.gdm/dbus
1⤵
- Changes its process name
- Creates .desktop file
- Writes file to tmp directory
PID:2418
- /bin/sh
  sh -c -- hostname
  2⤵
  PID:2419
- - /usr/bin/hostname
    hostname
    3⤵
    PID:2421
- /bin/sh
  sh -c -- whoami
  2⤵
  PID:2422
- - /usr/bin/whoami
    whoami
    3⤵
    PID:2423
- /bin/sh
  sh -c -- "cat /proc/cpuinfo | grep \"model name\""
  2⤵
  PID:2424
- - /usr/bin/cat
    cat /proc/cpuinfo
    3⤵
    - Checks CPU configuration
    PID:2425
- - /usr/bin/grep
    grep "model name"
    3⤵
    - Reads runtime system information
    PID:2426
- /bin/sh
  sh -c -- "df -h|grep 'dev' |grep -v none|awk '/dev/{print \$6}'"
  2⤵
  PID:2427
- - /usr/bin/df
    df -h
    3⤵
    - Reads runtime system information
    PID:2428
- - /usr/bin/grep
    grep dev
    3⤵
    - Reads runtime system information
    PID:2429
- - /usr/bin/grep
    grep -v none
    3⤵
    - Reads runtime system information
    PID:2430
- - /usr/bin/awk
    awk "/dev/{print \$6}"
    3⤵
    - Reads runtime system information
    PID:2431
- /bin/sh
  sh -c -- "uname -r"
  2⤵
  PID:2432
- - /usr/bin/uname
    uname -r
    3⤵
    PID:2433
- /bin/sh
  sh -c -- "kill 25978 2>/dev/null"
  2⤵
  PID:2438
- /bin/sh
  sh -c -- "uname -r"
  2⤵
  PID:2439
- - /usr/bin/uname
    uname -r
    3⤵
    PID:2440
- /bin/sh
  sh -c -- "rmmod usbdev.ko 2>/dev/null"
  2⤵
  PID:2441
- - /usr/sbin/rmmod
    rmmod usbdev.ko
    3⤵
    - Enumerates kernel/hardware configuration
    - Reads runtime system information
    PID:2442
- /bin/sh
  sh -c -- "rm -rf ../lib/usbdev.ko"
  2⤵
  PID:2443
- - /usr/bin/rm
    rm -rf ../lib/usbdev.ko
    3⤵
    PID:2444
- /bin/sh
  sh -c -- "lsmod | grep usbdev"
  2⤵
  PID:2446
- - /usr/sbin/lsmod
    lsmod
    3⤵
    - Reads list of loaded kernel modules
    - Enumerates kernel/hardware configuration
    - Reads runtime system information
    PID:2447
- - /usr/bin/grep
    grep usbdev
    3⤵
    - Reads runtime system information
    PID:2448

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

User Execution

T1204

Malicious File

T1204.002

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Credential Access

Discovery

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

/root/.config/autostart/gnome-control.desktop

Filesize
221B

MD5
5658e328db72f30402b90185541d2a2d

SHA1
06cd3066a817932f59d0ce9f1106a716ba9378cc

SHA256
967be9747af8fceba01462bcd5a7b02d03caa1e243d534f600220eeaabad53f8

SHA512
267a5d89255e3d1cc0d409c53412838c24eb940e616e73db51c60537ab952a7616b8db0b31d9fb43fd3c75bd460b20c0e34f8b8344d61695501555bf3ebc7d6b

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads