socks5systemz | 9c2760d918625825dd03f3240a644a333655b5bf131dd9b2bedc380433cd6bbb

General

Target

9c2760d918625825dd03f3240a644a333655b5bf131dd9b2bedc380433cd6bbb.exe
Size

4.2MB
MD5

059cb1000460c7ada7637642445d819f
SHA1

5744f62741b395e121fbbbc3c4ca82ef2b386377
SHA256

9c2760d918625825dd03f3240a644a333655b5bf131dd9b2bedc380433cd6bbb
SHA512

25ecff74e002a20d72f2511bc28c8c119713605914a3000325314e5c15cf35ca6c09b55a67fbbf2563fba3300963a3b7627c5606c6c97acffdc877f0b12e9f17
SSDEEP

98304:+515yQb//+nZ6LHaZ1OILoLdP9yG7lk3M/my5MaFMjnu//S8nivd1ZO:g5yQb/AcGZHLU9yUlp/Fm8MiHS0CXO

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://ejseexu.ua/search/?q=67e28dd86809f27b415ba51b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa1de8889b5e4fa9281ae978a771ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ffa13c9e9929c3a

http://ejseexu.ua/search/?q=67e28dd86809f27b415ba51b7c27d78406abdd88be4b12eab517aa5c96bd86ee9d834d895a8bbc896c58e713bc90c94836b5281fc235a925ed3e04d6bd974a95129070b616e96cc92be510b866db52bee348ee4c2b14a82966836f23d7f210c7ee909832cb689017

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/312-82-0x00000000009D0000-0x0000000000A72000-memory.dmp	family_socks5systemz
behavioral2/memory/312-106-0x00000000009D0000-0x0000000000A72000-memory.dmp	family_socks5systemz
behavioral2/memory/312-107-0x00000000009D0000-0x0000000000A72000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz

Executes dropped EXE 3 IoCs

pid	Process
3208	9c2760d918625825dd03f3240a644a333655b5bf131dd9b2bedc380433cd6bbb.tmp
520	lamexp32.exe
312	lamexp32.exe

Loads dropped DLL 1 IoCs

pid	Process
3208	9c2760d918625825dd03f3240a644a333655b5bf131dd9b2bedc380433cd6bbb.tmp

Unexpected DNS network traffic destination 1 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	152.89.198.214

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4104 wrote to memory of 3208	4104	9c2760d918625825dd03f3240a644a333655b5bf131dd9b2bedc380433cd6bbb.exe	73
PID 4104 wrote to memory of 3208	4104	9c2760d918625825dd03f3240a644a333655b5bf131dd9b2bedc380433cd6bbb.exe	73
PID 4104 wrote to memory of 3208	4104	9c2760d918625825dd03f3240a644a333655b5bf131dd9b2bedc380433cd6bbb.exe	73
PID 3208 wrote to memory of 520	3208	9c2760d918625825dd03f3240a644a333655b5bf131dd9b2bedc380433cd6bbb.tmp	74
PID 3208 wrote to memory of 520	3208	9c2760d918625825dd03f3240a644a333655b5bf131dd9b2bedc380433cd6bbb.tmp	74
PID 3208 wrote to memory of 520	3208	9c2760d918625825dd03f3240a644a333655b5bf131dd9b2bedc380433cd6bbb.tmp	74
PID 3208 wrote to memory of 312	3208	9c2760d918625825dd03f3240a644a333655b5bf131dd9b2bedc380433cd6bbb.tmp	75
PID 3208 wrote to memory of 312	3208	9c2760d918625825dd03f3240a644a333655b5bf131dd9b2bedc380433cd6bbb.tmp	75
PID 3208 wrote to memory of 312	3208	9c2760d918625825dd03f3240a644a333655b5bf131dd9b2bedc380433cd6bbb.tmp	75

C:\Users\Admin\AppData\Local\Temp\9c2760d918625825dd03f3240a644a333655b5bf131dd9b2bedc380433cd6bbb.exe
"C:\Users\Admin\AppData\Local\Temp\9c2760d918625825dd03f3240a644a333655b5bf131dd9b2bedc380433cd6bbb.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4104
- C:\Users\Admin\AppData\Local\Temp\is-HSBU9.tmp\9c2760d918625825dd03f3240a644a333655b5bf131dd9b2bedc380433cd6bbb.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-HSBU9.tmp\9c2760d918625825dd03f3240a644a333655b5bf131dd9b2bedc380433cd6bbb.tmp" /SL5="$60206,4201354,54272,C:\Users\Admin\AppData\Local\Temp\9c2760d918625825dd03f3240a644a333655b5bf131dd9b2bedc380433cd6bbb.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:3208
- - C:\Users\Admin\AppData\Local\LameXP\lamexp32.exe
    "C:\Users\Admin\AppData\Local\LameXP\lamexp32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:520
- - C:\Users\Admin\AppData\Local\LameXP\lamexp32.exe
    "C:\Users\Admin\AppData\Local\LameXP\lamexp32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:312

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\LameXP\lamexp32.exe

Filesize
2.1MB

MD5
67220aacd12924c681585e69fdb0a4df

SHA1
7c5f8ddc739954397d79238a9e3c3265dc7e1fb9

SHA256
adc5a19d14e989908f2e88c870ad7408af32104af5b0fbe12dadb99f22140452

SHA512
5401a24d28242c8e49829d71c3603501c4b435c198d52bcb0b2671a84ebe73828a69e85c4fae0ea5558e2bc8c18910324c2d6f88c31561883724b1b70cd736b5

Download Submit
C:\Users\Admin\AppData\Local\LameXP\libeay32.dll

Filesize
2.0MB

MD5
1176a2fcbc3cfb77207db7575dd6a522

SHA1
e0a854c77a65e542712c9fe3feae2331fcddb7f4

SHA256
553200e21658e7976d496c52cc1aeb50446b877ccda4f0b073a553ec3fb48560

SHA512
bb00340e4931342c4db499d68e98542f401a985c062810225ee661a7a289a885dab8c64f37fb231212ad2a5d703f3fd0528e8402fc1033cf4128d075714e3f34

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-HSBU9.tmp\9c2760d918625825dd03f3240a644a333655b5bf131dd9b2bedc380433cd6bbb.tmp

Filesize
695KB

MD5
73093a400f2c4c89373f6b40c31161ca

SHA1
1b63db72e1688b01ff690d8aba6d77c7c7a26afd

SHA256
a993dea351ccf12241f3622b729e547eace007e35bbca5bf13539224276adea4

SHA512
92a4b56cbb1aa743a7c315212183f36283e4dfeddcb531fd68eb1b4dab2e837cc1d6466c43053adc49db814ec76322a7da9868a1f4d38230796f223a7fed0971

Download Submit
\Users\Admin\AppData\Local\Temp\is-06O1S.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/312-106-0x00000000009D0000-0x0000000000A72000-memory.dmp

Filesize
648KB

Download
memory/312-91-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/312-127-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/312-124-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/312-121-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/312-118-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/312-115-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/312-112-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/312-69-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/312-72-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/312-75-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/312-78-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/312-81-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/312-82-0x00000000009D0000-0x0000000000A72000-memory.dmp

Filesize
648KB

Download
memory/312-86-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/312-108-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/312-94-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/312-97-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/312-100-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/312-103-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/312-107-0x00000000009D0000-0x0000000000A72000-memory.dmp

Filesize
648KB

Download
memory/520-59-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/520-60-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/520-63-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/3208-68-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/3208-10-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4104-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4104-67-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4104-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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